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CHLORAL HYDRATE

January 25th, 2009 by admin

M = Available in Canada bold italic = life-threatening side effect

g/m2) at bedtime (up to 1 g may be

given as a single dose).

Daytime sedative.

Pediatric: 8.3 mg/kg (250 mg/m2)

up to a maximum of 500 mg t.i.d. after

meals.

Premedication prior to EEG procedures.

Pediatric: 20–25 mg/kg.

• Suppositories, Rectal

Daytime sedative.

Adults: 325 mg t.i.d. Pediatric: 8.3

mg/kg (250 mg/m2) t.i.d.

Hypnotic.

Adults: 0.5–1 g at bedtime. Pediatric:

50 mg/kg (1.5 g/m2) at bedtime (up

to 1 g as a single dose).

DENTAL CONCERNS

General

1. A semisupine position for the

dental chair may be necessary to

help minimize or avoid adverse GI effects.

2. Mix the liquid in fruit juice or

punch in order to mask the unpleasant

taste and minimize adverse GI

effects.

3. This drug is contraindicated in

patients with peptic ulcer disease.

4. There is a risk for physical and

psychological dependence with

chronic use.

Client/Family Teaching

1. Avoid activities that require mental

alertness. Have someone drive

you to and from your appointment.

Chlorhexidine gluconate

C[hlokrhexlidoine grluc-onHate EX i-deen]

Pregnancy Category: B

PerioGard

Classification: Anti-infective oral rinse

Action/Kinetics: Chorhexidine is

absorbed onto the tooth surface,

dental plaque, and oral mucosa allowing

for a sustained reduction of

plaque organisms. Poorly absorbed

orally, 30% retained in the oral cavity

and slowly released.

Uses: Treatment of gingivitis between

dental visits. Non-FDA Approved

Uses: Acute aphthous ulcers,

denture stomatitis.

Contraindications: Hypersensitivity.

Special Concerns: Efficacy not established

in children < 18 years of age,

lactation, not intended for periodontitis.

Side Effects: Oral: Altered sense of

taste, increased calculus formation,

staining of teeth, tongue, and restorations,

mucosal desquamation and irritation,

transient parotitis.

Drug Interactions

Alcohol / ↑ Chance of disulfiramlike

reaction

Disfulfiram / ↑ Chance of disulfiram-

like reaction

Metronidazole / ↑ Chance of disulfiram-

like reaction

How Supplied: Oral rinse: 0.12%

Dosage –––––––––––––––––––––––––––––––

• Oral rinse

Gingivitis.

Adults: Rinse with 15 mL for 30 seconds

b.i.d. after brushing and flossing

teeth, then expectorate.

Denture stomatitis.

Soak dentures for 1 to 2 min b.i.d.

Have the patient follow the oral

rinse instructions.

DENTAL CONCERNS

General

1. Patients require dental examination

and prophylaxis/scaling/root

planing prior to the rinse.

2. Patients require frequent visits

due to oral side effects.

3. The medication may not be appropriate

for patients with anterior

facial restorations with rough surfaces

or margins.

Client/Family Teaching

1. Patients should be instructed to

eat, brush, and floss prior to using the

rinse.

2. Do not rinse with water after using

the rinse.

3. Inform patients of the oral side

effects of this drug.

Chlorpheniramine maleate

C[hlokrphelnoiraminre -mafleeate n-EAR-ah-meen]

Pregnancy Category: B

Syrup, Tablets, Chewable Tablets:

Aller-Chlor, Allergy, Chlo-Amine,

156 CHLORAL HYDRATE

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Chlor-Trimeton Allergy 4 Hour, Chlor-

Tripolon M [OTC], Extended-release

Tablets: Chlor-Trimeton 8 Hour and 12

Hour [OTC], Injectable: Chlorpheniramine

maleate [Rx]

Classification: Antihistamine, alkylamine

type

See also Antihistamines.

Action/Kinetics: Moderate anticholinergic

and low sedative activity.

Onset: 15–30 min. t1/2: 21–27 hr.

Time to peak effect: 6 hr. Duration:

3–6 hr.

Uses: PO: Allergic rhinitis. IM, SC:

Allergic reactions to blood and plasma

and adjunct to anaphylaxis therapy.

Contraindications: IV or intradermal

use. Not recommended for children

under 6 years of age.

Special Concerns: Geriatric clients

may be more sensitive to the adult

dose. Parenteral route not recommended

for neonates.

How Supplied: Capsule, Extended

Release: 8 mg, 12 mg; Chew Tablet: 2

mg; Injection: 10 mg/mL; Syrup: 2

mg/5 mL; Tablet: 4 mg; Tablet, Extended

Release: 8 mg, 12 mg, 16 mg

Dosage –––––––––––––––––––––––––––––––

• Syrup, Tablets, Chewable Tablets

Adults and children over 12

years: 4 mg q 6 hr, not to exceed 24

mg in 24 hr. Pediatric, 6–12 years:

2 mg (break 4-mg tablets in half) q

4–6 hr, not to exceed 12 mg in 24 hr.

2–6 years: 1 mg (1/4 of a 4-mg tablet)

q 4–6 hr.

• Extended-Release Tablets

Adults and children over 12

years: 8 mg q 8–12 hr or 12 mg q 12

hr, not to exceed 24 mg in 24 hr.

• IM, SC

Adults and children over 12

years: 5–40 mg for uncomplicated

allergic reactions; 10–20 mg for amelioration

of allergic reactions to

blood or plasma or to treat anaphylaxis.

Maximum dose per 24 hr: 40 mg.

DENTAL CONCERNS

See also Dental Concerns for Antihistamines.

Chlorpromazine

C[hlokrprolmoaziner-PROH-mah-zeen]

Thorazine [Rx]

Chlorpromazine

hydrochloride

C[hlokrprolmoaziner-PROH-mah-zeen]

Apo-Chlorpromazine M, Chlorprom

M, Chlorpromanyl M, Largactil M,

Novo–Chlorpromazine M, Ormazine,

Thorazine, Thor-Prom [Rx]

Classification: Antipsychotic,

dimethylamino-type phenothiazine

See also Antipsychotic Agents, Phenothiazines.

Action/Kinetics: Has significant

antiemetic, hypotensive, and sedative

effects; moderate to strong anticholinergic

effects and weak to

moderate extrapyramidal effects.

Peak plasma levels: 2–3 hr after

both PO and IM administration. t1/2

(after IV, IM): Initial, 4–5 hr; final,

3–40 hr. Extensively metabolized in

the intestinal wall and liver; certain of

the metabolites are active. Steadystate

plasma levels (in psychotics):

10–1,300 ng/mL. After 2–3 weeks of

therapy, plasma levels decline, possibly

because of reduction in drug

absorption and/or increase in drug

metabolism.

Uses: Acute and chronic psychoses,

including schizophrenia; manic

phase of manic-depressive illness.

Acute intermittent porphyria. Preanesthetic,

adjunct to treat tetanus,

intractable hiccoughs, severe behavioral

problems in children, neuroses,

and N&V. Treatment of choreiform

movements in Huntington’s disease.

Special Concerns: Use during

pregnancy only if benefits outweigh

risks. PO dosage for psychoses and

N&V has not been established in

children less than 6 months of age.

Additional Drug Interactions

Epinephrine / Chlorpromazine ↓

peripheral vasoconstriction and may

reverse action of epinephrine

Norepinephrine / Chlorpromazine ↓

pressor effect and eliminates bradycardia

due to norepinephrine

CHLORPROMAZINE 157

C

M = Available in Canada bold italic = life-threatening side effect

How Supplied: Chlorpromazine:

Suppository: 25 mg. Chlorpromazine

hydrochloride: Capsule, Extended

Release: 30 mg, 75 mg, 150 mg; Concentrate:

30 mg/mL, 100 mg/mL; Injection:

25 mg/mL; Syrup: 10 mg/5

mL; Tablet: 10 mg, 25 mg, 50 mg,

100 mg, 200 mg

Dosage –––––––––––––––––––––––––––––––

• Tablets, Extended-Release Capsules,

Oral Concentrate, Syrup

Psychotic disorders.

Adults and adolescents: 10–25 mg

(of the base) b.i.d.–q.i.d.; dosage

may be increased by 20–50 mg/day q

3–4 days as needed. Or, 30–300 mg

(of the base) using the extended-release

capsules 1–3 times/day (the

300-mg extended-release capsules

are used only in severe neuropsychiatric

situations). Pediatric: 0.55

mg/kg (15 mg/m2) q 4–6 hr.

N&V.

Adults and adolescents: 10–25 mg

(of the base) q 4 hr; dosage may be

increased as needed. Pediatric: 0.55

mg/kg (15 mg/m2) q 4–6 hr.

Preoperative sedation.

Adults and adolescents: 25–50 mg

(of the base) 2–3 hr before surgery.

Pediatric: 0.55 mg/kg (15 mg/m2)

2–3 hr before surgery.

Hiccoughs or porphyria.

Adults and adolescents: 25–50 mg

(of the base) t.i.d.–q.i.d.

• IM

Severe psychoses.

Adults: 25–50 mg (of the base) repeated

in 1 hr if needed; then, repeat

the dose q 3–4 hr as needed and tolerated

(the dose may be increased

gradually over several days). Pediatric,

over 6 months: 0.55 mg/kg (15

mg/m2) q 6–8 hr as needed.

N&V.

Adults: 25 mg (base) as a single

dose; then, increase to 25–50 mg q

3–4 hr as needed until vomiting

ceases. Pediatric: 0.55 mg/kg q 6–8

hr as needed.

N&V during surgery.

Adults: 12.5 mg (base) as a single

dose; repeat in 30 min if needed.

Pediatric, 0.275 mg/kg; repeat in 30

min if needed.

Preoperative sedative.

Adults: 12.5–25 mg (base) 1–2 hr

before surgery. Pediatric: 0.55

mg/kg 1–2 hr before surgery.

Hiccoughs.

Adults: 25–50 mg (base) t.i.d.–q.i.d.

Porphyria.

Adults: 25 mg (base) q 6–8 hr until

client can take PO therapy.

Tetanus.

Adults: 25–50 mg (base) t.i.d.–q.i.d.

(dose can be increased as needed

and tolerated).

• IV

N&V during surgery.

Adults: 25 mg (base) diluted to 1

mg/mL with 0.9% NaCl injection given

at a rate of no more than 2 mg/2

min. Pediatric: 0.275 mg/kg diluted

to 1 mg/mL with 0.9% NaCl injection

given at a rate of no more than 1 mg

q 2 min.

Tetanus.

Adults: 25–50 mg (base) diluted to 1

mg/mL with 0.9% NaCl injection and

given at a rate of 1 mg/min. Pediatric:

0.55 mg/kg diluted to 1 mg/mL

with 0.9% NaCl injection and given at

a rate of 1 mg/2 min.

• Suppositories

N&V.

Adults and adolescents: 50–100

mg q 6–8 hr as needed up to a maximum

of 400 mg/day. Pediatric: 1

mg/kg q 6–8 hr as needed (do not use

the 100-mg suppository in children).

DENTAL CONCERNS

See also Dental Concerns for Antipsychotic

Agents, Phenothiazines.

Chlorpropamide

C[hlokrprolpoamider-PROH-pah-myd]

Pregnancy Category: C

Apo-Chlorpropamide M, Diabinese,

Novo–Propamide M [Rx]

Classification: Sulfonylurea, first-generation

See also Antidiabetic Agents: Hypoglycemic

Agents and Insulin.

Action/Kinetics: May be effective

in clients who do not respond well to

other antidiabetic agents. Onset: 1

hr. t1/2: 35 hr. Time to peak levels:

158 CHLORPROMAZINE

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2–4 hr. Duration: Up to 60 hr (due to

slow excretion). Eighty percent metabolized

in liver; 80%–90% excreted in

the urine.

Additional Uses: Non-FDA Approved

Uses: Neurogenic diabetes

insipidus.

Special Concerns: If the client is

susceptible to fluid retention or has

impaired cardiac function, frequent

monitoring is necessary.

Additional Side Effects: Side effects

are frequent. Severe diarrhea,

occasionally accompanied by bleeding

in the lower bowel. Relieve severe

GI distress by dividing total daily

dose in half. In older clients, hypoglycemia

may be severe. Inappropriate

ADH secretion, leading to hyponatremia,

water retention, low serum

osmolality, and high urine osmolality.

Additional Drug Interactions

Disulfiram / More likely to interact

with chlorpropamide than other

oral antidiabetics

Probenecid / ↑ Effect of chlorpropamide

Sodium bicarbonate / ↓ Effect of

chlorpropamide due to ↑ excretion

by kidney

How Supplied: Tablet: 100 mg, 250

mg

Dosage –––––––––––––––––––––––––––––––

• Tablets

Diabetes.

Adults, middle-aged clients, mild to

moderate diabetes, initial: 250

mg/day as a single or divided dose;

geriatric, initial: 100–125 mg/day.

All clients, maintenance: 100–250

mg/day as single or divided doses. Severe

diabetics may require 500

mg/day; doses greater than 750

mg/day are not recommended.

Neurogenic diabetes insipidus.

Adults: 200–500 mg/day.

DENTAL CONCERNS

See also Dental Concerns for Antidiabetic

Agents: Hypoglycemic Agents

(Including Sulfonylureas).

Cholestyramine resin

C[hoklestyoraminhe resi-nless-TEER-ah-meen]

Alti-Cholestyramine Light M, Lo-

Cholest, Novo-Cholaine Light M,

PMS-Cholestyramine M, Prevalite,

Questran, Questran Light [Rx]

Classification: Hypocholesterolemic

agent, bile acid sequestrant

Action/Kinetics: Binds sodium

cholate (bile salts) in the intestine;

thus, the principal precursor of cholesterol

is not absorbed due to formation

of an insoluble complex, which

is excreted in the feces. Decreases

cholesterol and LDL and either has no

effect or increases triglycerides,

VLDL, and HDL. Also, itching is relieved

as a result of removing irritating

bile salts. The antidiarrheal effect

results from the binding and removal

of bile acids. Onset, to reduce

plasma cholesterol: Within 24–48

hr, but levels may continue to fall

for 1 yr; to relieve pruritus: 1–3

weeks; relief of diarrhea associated

with bile acids: 24 hr. Cholesterol

levels return to pretreatment levels

2–4 weeks after discontinuance.

Fat-soluble vitamins (A, D, K) and

possibly folic acid may have to be

administered IM during long-term

therapy because cholestyramine

binds these vitamins in the intestine.

Uses: Adjunct to reduce elevated

serum cholesterol in primary hypercholesterolemia

in those who do not

respond adequately to diet. Pruritus

associated with partial biliary obstruction.

Diarrhea due to bile acids.

Non-FDA Approved Uses: Antibiotic-induced

pseudomembranous colitis

(i.e., due to toxin produced by Clostridium

difficile), digitalis toxicity,

treatment of chlordecone (Kepone)

poisoning, treatment of thyroid hormone

overdose.

Contraindications: Complete obstruction

or atresia of bile duct, hypersensitivity.

Special Concerns: Use during

pregnancy only if benefits outweigh

risks. Use with caution during lactation

and in children. Long-term effects

and efficacy in decreasing cho-

CHOLESTYRAMINE RESIN 159

C

M = Available in Canada bold italic = life-threatening side effect

lesterol levels in pediatric clients are

not known. Geriatric clients may be

more likely to manifest GI side effects

as well as adverse nutritional effects.

Caution should be exercised by

phenylketonurics as Prevalite contains

14.1 mg phenylalanine per 5.5-

g dose.

Side Effects: Oral: Dental bleeding,

sour taste. GI: Constipation (may be

severe), N&V, diarrhea, heartburn,

GI bleeding, anorexia, flatulence,

belching, abdominal distention, abdominal

pain or cramping, loose

stools, indigestion, aggravation of

hemorrhoids, rectal bleeding or

pain, black stools, bleeding duodenal

ulcer, peptic ulceration, GI irritation,

dysphagia, dental bleeding, hiccoughs,

sour taste, pancreatitis, diverticulitis,

cholescystitis, cholelithiasis.

Fecal impaction in elderly clients.

Large doses may cause

steatorrhea. CNS: Migraine or sinus

headaches, dizziness, anxiety, vertigo,

insomnia, fatigue, lightheadedness,

syncope, drowsiness, femoral nerve

pain, paresthesia. Hypersensitivity:

Urticaria, dermatitis, asthma, wheezing,

rash. Hematologic: Increased

PT, ecchymosis, anemia. Musculoskeletal:

Muscle or joint pain, backache,

arthritis, osteoporosis. GU:

Hematuria, dysuria, burnt odor to

urine, diuresis. Other: Bleeding tendencies

(due to hypoprothrombinemia).

Deficiencies of vitamins A and

D. Uveitis, weight loss or gain, osteoporosis,

swollen glands, increased libido,

weakness, SOB, edema, swelling

of hands/feet; hyperchloremic

acidosis in children, rash and irritation

of the skin, tongue, and perianal

area.

Drug Interactions

Aspirin / ↓ Absorption of aspirin

from GI tract

Cephalexin / ↓ Absorption of cephalexin

from GI tract

Clindamycin / ↓ Absorption of clindamycin

from GI tract

Corticosteroids / ↓ Absorption of

corticosteroids from GI tract

Hydrocortisone / ↓ Effect of hydrocortisone

due to ↓ absorption from

GI tract

Penicillin G / ↓ Effect of penicillin

G due to ↓ absorption from GI tract

Phenobarbital / ↓ Absorption of

phenobarbital from GI tract

Piroxicam / ↑ Elimination

Tetracyclines / ↓ Effect of tetracyclines

due to ↓ absorption from GI

tract

NOTE: These drug interactions

may also be observed with colestipol.

How Supplied: Powder for reconstitution:

4 g/5 g, 4 g/5.5 g, 4 g/5.7 g, 4

g/9 g

Dosage –––––––––––––––––––––––––––––––

• Powder

Adults, initial: 1 g 1–2 times/day.

Dose is individualized. Maintenance:

2–4 packets or scoopfuls/

day (8–16 g anhydrous cholestyramine

resin) mixed with 60–180 mL

water or noncarbonated beverage.

The recommended dosing schedule is

b.i.d. but it can be given in one to six

doses/day. Maximum daily dose: 6

packets or scoopsful.

DENTAL CONCERNS

General

1. Review life-style, duration of illness,

and attempts made to control

with diet, exercise, and weight reduction.

2. Consider repositioning dental

chair to semisupine condition for

patient discomfort because of GI

side effects.

Cidofovir

C[idosfoviirh-DOF-oh-veer]

Pregnancy Category: C

Vistide [Rx]

Classification: Antiviral drug

See also Antiviral Drugs.

Action/Kinetics: A nucleotide analog

that suppresses CMV replication by selective

inhibition of viral DNA synthesis.

Must be administered with probenecid.

Uses: Treatment of CMV retinitis in clients

with AIDS.

Contraindications: History of severe

hypersensitivity to probenecid

or other sulfa-containing drugs. Use

by direct intraocular injection.

160 CHOLESTYRAMINE RESIN

C

Special Concerns: Safety and efficacy

have not been determined for

children or for treatment of other

CMV infections, including pneumonitis,

gastroenteritis, congenital or

neonatal CMV disease, or CMV disease

in non-HIV-infected clients. Increased

risk of ocular hypotony in

those with preexisting diabetes. Use

in clients with a baseline serum

creatinine greater than 1.5 mg/dL or

creatinine clearances of 55 mL/min or

less only when potential benefits

outweigh potential risks.

Side Effects: Renal/GU: Nephrotoxicity,

Fanconi’s syndrome and decreases

in serum bicarbonate associated

with renal tubular damage,

proteinuria, elevated serum creatinine,

glycosuria, hematuria, urinary incontinence,

UTI. Oral: Tongue discoloration,

oral candidiasis, stomatitis,

apththous stomatitis, mouth ulceration,

dry mouth. GI: N&V, diarrhea,

anorexia, abdominal pain, colitis,

constipation, dyspepsia, dysphagia,

flatulence, gastritis, hepatomegaly,

abnormal liver function tests, melena,

rectal disorder. CNS: Headache, asthenia,

amnesia, anxiety, confusion,

convulsions, depression, dizziness,

abnormal gait, hallucinations, insomnia,

neuropathy, paresthesia,

somnolence. CV: Hypotension, postural

hypotension, pallor, syncope, tachycardia,

vasodilation. Hematologic:

Neutropenia, granulocytopenia,

thrombocytopenia, anemia. Respiratory:

Asthma, bronchitis, coughing,

dyspnea, hiccup, increased sputum,

lung disorder, pharyngitis, pneumonia,

rhinitis, sinusitis. Dermatologic: Alopecia,

rash, acne, skin discoloration,

dry skin, herpes simplex, pruritus,

rash, sweating, urticaria.

Musculoskeletal: Arthralgia, myasthenia,

myalgia. Metabolic: Edema,

dehydration, weight loss. Ophthalmic:

Ocular hypotony, amblyopia,

conjunctivitis, eye disorder, iritis, retinal

detachment, uveitis, abnormal

vision. Miscellaneous: Allergic reactions,

facial edema, malaise, back

pain, chest pain, neck pain, sarcoma,

sepsis, fever, infections, chills.

Drug Interactions

Amphotericin B / ↑ Risk of nephrotoxicity

Aminoglycosides / ↑ Risk of nephrotoxicity

Foscarnet / Risk of nephrotoxicity

Pentamidine, IV / ↑ Risk of nephrotoxicity

Zidovudine / ↓ Clearance of zidovudine

How Supplied: Injection: 75

mg/mL

Dosage –––––––––––––––––––––––––––––––

• IV Infusion

CMV retinitis.

Induction: 5 mg/kg given once

weekly for 2 consecutive weeks as an

IV infusion at a constant rate over 1

hr. Maintenance: 5 mg/kg given

once q 2 weeks as an IV infusion at

a constant rate over 1 hr. With each

dose of cidofovir, probenecid, 2 g

PO, must be given 3 hr prior to the cidofovir

dose and 1 g PO given at 2 hr

and again at 8 hr after completion of

the 1-hr cidofovir infusion. Also,

with each dose of cidofovir, the client

should receive a total of 1 L of 0.9%

NaCl solution IV over a 1- to 2-hr

period just before the cidofovir infusion.

If the client can tolerate it, give

a second liter of 0.9% NaCl solution either

at the start of the cidofovir infusion

or immediately afterward and

infuse over a 1- to 3-hr period. If

serum creatinine increases by 0.3 to

0.4 mg/dL, reduce the dose of cidofovir

from 5 to 3 mg/kg. Discontinue

cidofovir if the serum creatinine increases

by 0.5 mg/dL or more or if

there is development of 3+ or more

proteinuria.

DENTAL CONCERNS

See also Dental Concerns for Antiviral

Drugs.

Client/Family Teaching

1. Review the importance of good

oral hygiene in order to prevent soft

tissue inflammation.

CIDOFOVIR 161

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M = Available in Canada bold italic = life-threatening side effect

2. Review the proper use of oral hygiene

aids in order to prevent injury.

3. Daily home fluoride treatments

for persistent dry mouth.

4. Avoid alcohol-containing mouth

rinses or beverages.

5. Avoid caffeine-containing beverages.

6. Dry mouth can be treated with

tart, sugarless gum or candy, water,

sugar-free beverages, or with saliva

substitutes if dry mouth persists.

Cimetidine

C[imsetidiyne e-MET-ih-deen]

Pregnancy Category: B

Apo-Cimetidine M, Novo–Cimetine

M, Nu-Cimet M, Peptol M, Tagamet

[Rx], Tagamet HB [OTC]

Classification: Histamine H2 receptor

blocking agent

See also Histamine H2 Antagonists.

Action/Kinetics: Reduces postprandial

daytime and nighttime gastric

acid secretion by about 50%–80%. It

also inhibits cytochrome P-450 and P-

448, which will affect metabolism of

drugs. Well absorbed from GI tract.

Peak plasma level, PO: 45–90 min.

Time to peak effect, after PO: 1–2

hr. Peak plasma levels, after PO

use: 0.7–3.2 mcg/mL (after a 300 mg

dose; after IV: 3.5–7.5 mcg/mL.

Protein binding: 13%–25%. Duration,

nocturnal: 6–8 hr; basal: 4–5

hr. t1/2: 2 hr, longer in presence of renal

impairment. After PO use, most

metabolized in liver; after parenteral

use, about 75% of drug excreted unchanged

in the urine.

Uses: Rx. Treatment and maintenance

of active duodenal ulcers.

Short-term (6 weeks) treatment of

benign gastric ulcers (in rare cases,

healing has occurred). As part of

multidrug regimen to eradicate Helicobacter

pylori. Management of gastric

acid hypersecretory states

(Zollinger-Ellison syndrome, systemic

mastocytosis). Gastroesophageal

reflux disease, including erosive

esophagitis. Prophylaxis of upper GI

bleeding in critically ill hospitalized clients.

Non-FDA Approved Uses: Prior to

surgery to prevent aspiration pneumonitis,

secondary hyperparathyroidism

in chronic hemodialysis clients,

prophylaxis of stress-induced ulcers,

hyperparathyroidism, dyspepsia,

herpes virus infections, tinea capitis,

hirsute women, chronic idiopathic

urticaria, dermatologic anaphylaxis,

acetaminophen overdosage, warts,

colorectal cancer.

OTC: Relief of symptoms of heartburn,

acid indigestion, and sour

stomach.

Contraindications: Children under

16, lactation. Cirrhosis, impaired liver

and renal function.

Special Concerns: In geriatric clients

with impaired renal or hepatic

function, confusion is more likely to

occur. Not recommended for children

less than 16 years of age.

Side Effects: GI: Diarrhea, pancreatitis

(rare), hepatitis, hepatic fibrosis.

CNS: Dizziness, sleepiness, headache,

confusion, delirium, hallucinations,

double vision, dysarthria, ataxia.

Severely ill clients may manifest agitation,

anxiety, depression,

disorientation, hallucinations, mental

confusion, and psychosis. CV:

Hypotension and arrhythmias following

rapid IV administration. Hematologic:

Agranulocytosis, thrombocytopenia,

hemolytic or aplastic anemia,

granulocytopenia. GU: Impotence

(high doses for prolonged periods of

time), gynecomastia (long-term

treatment). Dermatologic: Exfoliative

dermatitis, erythroderma, erythema

multiforme. Musculoskeletal: Arthralgia,

reversible worsening of joint

symptoms with preexisting arthritis

(including gouty arthritis). Other:

Hypersensitivity reactions, pain at

injection site, myalgia, rash, cutaneous

vasculitis, peripheral neuropathy,

galactorrhea, alopecia, bronchoconstriction.

Drug Interactions

Antacids / ↓ Effect of cimetidine

due to ↓ absorption from GI tract

Anticholinergics / ↓ Effect of cimetidine

due to ↓ absorption from GI

tract

Benzodiazepines / ↑ Effect of benzodiazepines

due to ↓ breakdown

by liver

162 CIDOFOVIR

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Caffeine / ↑ Effect of caffeine due

to ↓ breakdown by liver

Carbamazepine / ↑ Effect of carbamazepine

due to ↓ breakdown by

liver

Chlorpromazine / ↓ Effect of chlorpromazine

due to ↓ absorption

from GI tract

Fluconazole / ↓ Effect of fluconazole

due to ↓ absorption from GI

tract

Indomethacin / ↓ Effect of indomethacin

due to ↓ absorption from

GI tract

Ketoconazole / ↓ Effect of ketoconazole

due to ↓ absorption from GI

tract

Lidocaine / ↑ Effect of lidocaine

due to ↓ breakdown by liver

Metronidazole / ↑ Effect of metronidazole

due to ↓ breakdown by

liver

Opioid Analgesics / Possible ↑ toxic

effects (respiratory depression) of

narcotics

Phenytoin / ↑ Effect of phenytoin

due to ↓ breakdown by liver

Succinylcholine / ↑ Neuromuscular

blockade → respiratory depression

and extended apnea

Sulfonylureas / ↑ Effect of sulfonylureas

due to ↓ breakdown by liver

Tetracyclines / ↓ Effect of tetracyclines

due to ↓ absorption from GI

tract

Tricyclic antidepressants / ↑ Effect

of tricyclic antidepressants due to ↓

breakdown by liver

How Supplied: Injection: 150

mg/mL, 300 mg/50 mL; Solution:

300 mg/5 mL; Tablet: 100 mg, 200

mg, 300 mg, 400 mg, 800 mg

Dosage –––––––––––––––––––––––––––––––

• Tablets, Oral Solution

Duodenal ulcers, short-term.

Adults: 800 mg at bedtime. Alternate

dosage: 300 mg q.i.d. with

meals and at bedtime for 4–6 weeks

(administer with antacids, staggering

the dose of antacids) or 400 mg

b.i.d. (in the morning and evening).

Maintenance: 400 mg at bedtime.

Active benign gastric ulcers.

Adults: 800 mg at bedtime (preferred

regimen) or 300 mg q.i.d.

with meals and at bedtime for no

more than 8 weeks.

Pathologic hypersecretory conditions.

Adults: 300 mg q.i.d. with meals

and at bedtime up to a maximum of

2,400 mg/day for as long as needed.

Erosive gastroesophageal reflux

disease.

Adults: 800 mg b.i.d. or 400 mg

q.i.d. for 12 weeks. Use beyond 12

weeks has not been determined.

Heartburn, acid indigestion, sour

stomach (OTC only).

200 mg with water as symptoms present

up to b.i.d.

Dyspepsia.

Adults: 400 mg b.i.d.

Prophylaxis of aspiration pneumonitis.

Adults: 400–600 mg 60–90 min before

anesthesia.

Primary hyperparathyroidism,

secondary hyperparathyroidism in

chronic hemodialysis clients.

Up to 1 g/day.

• IM, IV, IV Infusion

Hospitalized clients with pathologic

hypersecretory conditions or

intractable ulcers or those unable to

take PO medication.

Adults: 300 mg IM or IV q 6–8 hr. If

an increased dose is necessary, administer

300 mg more frequently than q

6–8 hr, not to exceed 2,400 mg/day.

Prophylaxis of upper GI bleeding.

Adults: 50 mg/hr by continuous IV infusion.

If CCR is less than 30 mL/min,

use one-half the recommended

dose. Treatment beyond 7 days has

not been studied.

Prophylaxis of aspiration pneumonitis.

Adults: 300 mg IV 60–90 min before

induction of anesthetic.

DENTAL CONCERNS

See also Dental Concerns for Histamine

H2 Antagonists.

CIMETIDINE 163

C

M = Available in Canada bold italic = life-threatening side effect

Cinoxacin

C[inosxaciinn-OX-ah-sin]

Pregnancy Category: B

Cinobac Pulvules [Rx]

Classification: Urinary anti-infective

See also Anti-Infectives.

Action/Kinetics: Related chemically

to nalidixic acid. Acts by inhibiting

DNA replication, resulting in a bactericidal

action. Rapidly absorbed after

PO administration; a 500-mg dose

results in a urine concentration of

300 mcg/mL during the first 4-hr period

and 100 mcg/mL during the

second 4-hr period. Within 24 hr,

97% is excreted in the urine, 60%

unchanged. Mean serum t1/2: 1.5 hr.

Food decreases peak serum levels

by approximately 30% but not the

total amount absorbed.

Uses: Initial and recurrent UTIs

caused by Escherichia coli, Proteus

mirabilis, P. vulgaris, Klebsiella, and

Enterobacter species. Prevents UTIs

for up to 5 months in women with a

history of UTIs. NOTE: Cinoxacin is ineffective

against Pseudomonas,

staphylococci, and enterococci infections.

Prophylaxis of UTIs.

Contraindications: Hypersensitivity

to cinoxacin or other quinolones.

Infants and prepubertal children.

Anuric clients. Lactation.

Special Concerns: Use with caution

in clients with hepatic or kidney

disease. Safety and efficacy in children

less than 18 years of age have not

been determined.

Side Effects: GI: N&V, anorexia, abdominal

cramps and pain, diarrhea, altered

sensation of taste. CNS: Headache,

dizziness, insomnia, drowsiness,

confusion, nervousness.

Hypersensitivity: Rash, pruritus, urticaria,

edema, angioedema, eosinophilia,

anaphylaxis (rare), toxic epidermal

necrolysis (rare), erythema multiforme,

Stevens-Johnson syndrome.

Other: Tingling sensation, photophobia,

perineal burning, tinnitus,

thrombocytopenia.

Drug Interactions: Probenecid / ↓

Excretion of cinoxacin → ↓ concentration

in the urine.

How Supplied: Capsule: 250 mg,

500 mg

Dosage –––––––––––––––––––––––––––––––

• Capsules

UTIs.

Adults: 1 g/day in two to four divided

doses for 7–14 days. In clients

with impaired renal function: Initial,

500 mg; then, dosage schedule

based on creatinine clearance (see

package insert).

Prophylaxis of UTIs in women.

250 mg at bedtime for up to 5

months.

DENTAL CONCERNS

See also General Dental Concerns

for All Anti-Infectives.

Ciprofloxacin

hydrochloride

C[iprsofloixapcin hy-drrocholoridew-FLOX-ah-sin]

Pregnancy Category: C

Ciloxan Ophthalmic, Cipro, Cipro

Cystitis Pack, Cipro I.V. [Rx]

Classification: Fluoroquinolone antiinfective

See also Fluoroquinolones.

Action/Kinetics: Effective against

both gram-positive and gram-negative

organisms. Rapidly and well absorbed

following PO administration.

Food delays absorption of the drug.

Maximum serum levels: 2–4

mcg/mL 1–2 hr after dosing. t1/2: 4 hr

for PO use and 5–6 hr for IV use.

Avoid peak serum levels above 5

mcg/mL. About 40%–50% of a PO

dose and 50%–70% of an IV dose is

excreted unchanged in the urine.

Uses: Systemic. UTIs caused by Escherichia

coli, Enterobacter cloacae,

Citrobacter diversus, Citrobacter

freundii, Klebsiella pneumoniae,

Proteus mirabilis, Providencia rettgeri,

Pseudomonas aeruginosa, Morganella

morganii, Serratia marcescens,

Serratia epidermidis, and

Streptococcus faecalis. Uncomplicated

cervical and urethral gonorrhea due to

Neisseria gonorrhoeae. Chancroid

due to Haemophilus ducreyi; un-

164 CINOXACIN

C

complicated or disseminated gonococcal

infections.

Mild to moderate chronic bacterial

prostatitis due to E. coli or P. mirabilis.

Mild to moderate sinusitis due to S.

pneumoniae, H. influenzae, or M.

catarrhalis.

Lower respiratory tract infections

caused by E. coli, E. cloacae, K.

pneumoniae, P. mirabilis, P. aeruginosa,

Haemophilus influenzae, H.

parainfluenzae, and Streptococcus

pneumoniae.

Bone and joint infections due to

E. cloacae, P. aeruginosa, and S.

marcescens.

Skin and skin structure infections

caused by E. coli, E. cloacae, Citrobacter

freundii, M. morganii, K.

pneumoniae, P. aeruginosa, P. mirabilis,

Proteus vulgaris, Providencia

stuartii, Staphylococcus pyogenes,

Staphylococcus epidermidis, and

penicillinase- and non-penicillinaseproducing

strains of Staphylococcus

aureus.

Infectious diarrhea caused by enterotoxigenic

strains of E. coli. Also,

Campylobacter jejuni, Shigella flexneri,

and Shigella sonnei.

Typhoid fever (enteric fever) due to

Salmonella typhi. Efficacy in eradicating

the chronic typhoid carrier

state has not been shown.

IV as empirical therapy in febrile

neutropenia.

Non-FDA Approved Uses: Clients,

over 14 years of age, with cystic fibrosis

who have pulmonary exacerbations

due to susceptible microorganisms.

Malignant external otitis. In

combination with rifampin and other

tuberculostatics for tuberculosis.

Ophthalmic. Superficial ocular

infections due to Staphylococcus

species (including S. aureus), Streptococcus

species (including S. pneumoniae,

S. pyogenes), E. coli, H.

ducreyi, H. influenzae, H. parainfluenzae,

K. pneumoniae, N. gonorrhoeae,

Proteus species, Klebsiella

species, Acinetobacter calcoaceticus,

Enterobacter aerogenes, P. aeruginosa,

S. marcescens, Chlamydia

trachomatis, Vibrio species, and

Providencia species.

Contraindications: Hypersensitivity

to quinolones. Use in children.

Lactation. Ophthalmic use in the

presence of dendritic keratitis, varicella,

vaccinia, and mycobacterial and

fungal eye infections and after removal

of foreign bodies from the

cornea.

Special Concerns: Safety and effectiveness

of ophthalmic, PO, or IV

use have not been determined in

children.

Additional Side Effects: See also

Side Effects for Fluoroquinolones.

Oral: Dry, painful mouth, oral candidiasis.

GI: N&V, abdominal pain/discomfort,

diarrhea, dry/painful

mouth, dyspepsia, heartburn, constipation,

flatulence, pseudomembranous

colitis, oral candidiasis, intestinal

perforation, anorexia, GI bleeding,

bad taste in mouth. CNS: Headache,

dizziness, fatigue, lethargy, malaise,

drowsiness, restlessness, insomnia,

nightmares, hallucinations, tremor,

lightheadedness, irritability, confusion,

ataxia, mania, weakness, psychotic

reactions, depression, depersonalization,

seizures. GU: Nephritis,

hematuria, cylindruria, renal failure,

urinary retention, polyuria, vaginitis,

urethral bleeding, acidosis, renal calculi,

interstitial nephritis, vaginal

candidiasis. Skin: Urticaria, photosensitivity,

hypersensitivity, flushing,

erythema nodosum, cutaneous candidiasis,

hyperpigmentation, rash, paresthesia,

edema (of lips, neck, face,

conjunctivae, hands), angioedema,

toxic epidermal necrolysis, exfoliative

dermatitis, Stevens-Johnson syndrome.

Ophthalmic: Blurred or disturbed

vision, double vision, eye

pain, nystagmus. CV: Hypertension,

syncope, angina pectoris, palpitations,

atrial flutter, MI, cerebral

thrombosis, ventricular ectopy, cardiopulmonary

arrest, postural hypotension.

Respiratory: Dyspnea, bronchospasm,

pulmonary embolism, edema of

larynx or lungs, hemoptysis, hic-

CIPROFLOXACIN HYDROCHLORIDE 165

C

M = Available in Canada bold italic = life-threatening side effect

coughs, epistaxis. Hematologic: Eosinophilia,

pancytopenia, leukopenia,

anemia, leukocytosis, agranulocytosis,

bleeding diathesis. Miscellaneous:

Superinfections; fever; chills;

tinnitus; joint pain or stiffness; back,

neck, or chest pain; flare-up of gout;

flushing; worsening of myasthenia

gravis; hepatic necrosis; cholestatic

jaundice; hearing loss, dysphasia.

After ophthalmic use: Irritation,

burning, itching, angioneurotic edema,

urticaria, maculopapular and vesicular

dermatitis, crusting of lid

margins, conjunctival hyperemia,

bad taste in mouth, corneal staining,

keratitis, keratopathy, allergic reactions,

photophobia, decreased vision,

tearing, lid edema. Also, a

white, crystalline precipitate in the

superficial part of corneal defect

(onset within 1–7 days after initiating

therapy; lasts about 2 weeks and

does not affect continued use of the

medication).

How Supplied: Injection: 10

mg/mL, 200 mg/100 mL, 400 mg/200

mL; Ophthalmic solution: 0.3%; Tablet:

100 mg, 250 mg, 500 mg, 750 mg

Dosage –––––––––––––––––––––––––––––––

• Tablets

UTIs.

250 mg (mild to moderate) to 500

mg (severe/complicated) q 12 hr for

7–14 days.

Mild to moderate chronic bacterial

prostatitis.

Adults: 500 mg b.i.d. for 28 days.

Mild to moderate sinusitis.

Adults: 500 mg b.i.d. for 10 days.

Urethral or cervical gonococcal

infections, uncomplicated.

250 mg in a single dose.

Infectious diarrhea.

500 mg q 12 hr for 5–7 days.

Skin, skin structures, lower respiratory

tract, bone and joint infections.

500 mg (mild to moderate) to 750

mg (severe or complicated) q 12 hr for

7–14 days. Treatment may be required

for 4–6 weeks in bone and

joint infections.

Typhoid fever.

500 mg (mild to moderate) q 12 hr for

10 days.

Chancroid (H. ducreyi infection).

500 mg b.i.d. for 3 days.

Disseminated gonococcal infections.

500 mg b.i.d. to complete a full

week of therapy after initial treatment

with ceftriaxone, 1 g IM or IV q

24 hr for 24–48 hr after improvement

begins.

Uncomplicated gonococcal infections.

500 mg in a single dose plus doxycycline.

NOTE: Dose must be reduced

with a CCR less than 50 mL/min. The

PO dose should be 250–500 mg q 12

hr if the CCR is 30–50 mL/min and

250–500 mg q 18 hr (IV: 200–400 mg

q 18–24 hr) if the CCR is 5–29

mL/min. If the client is on hemodialysis

or peritoneal dialysis, the PO

dose should be 250–500 mg q 24 hr

after dialysis.

• Cipro Cystitis Pack

Uncomplicated UTI infections.

100 mg b.i.d. for 3 days. The pack

contains six 100-mg tablets of ciprofloxacin

and is intended to increase

compliance.

• IV Infusion

UTIs.

200 mg (mild to moderate) to 400

mg (severe or complicated) q 12 hr for

7–14 days.

Skin, skin structures, respiratory

tract, bone and joint infections.

400 mg (for mild to moderate infections)

q 12 hr for 7–14 days.

• Ophthalmic Solution

Acute infections.

Initial, 1–2 gtt q 15–30 min; then, reduce

dosage as infection improves.

Moderate infections.

1–2 gtt 4–6 (or more) times/day.

DENTAL CONCERNS

See also Dental Concerns for All

Anti-infectives and Fluoroquinolones.

Cisapride

C[isaSprideISS-ah-pryd]

166 CIPROFLOXACIN HYDROCHLORIDE

C

Pregnancy Category: C

Prepulsid M, Propulsid [Rx]

Classification: GI drug

Action/Kinetics: Cisapride is a GI

prokinetic agent. Acts by enhancing

release of acetylcholine at the myenteric

plexus, resulting in increased

strength of esophageal peristalsis

and an increase in lower esophageal

sphincter pressure. Also increases

gastric emptying time. Rapidly absorbed.

Onset: 30–60 min. Peak

plasma levels: 1–1.5 hr. Terminal

t1/2: 6–12 hr (up to 20 hr following IV

use). Metabolized in the liver with

less than 10% excreted unchanged

through the urine and feces.

Uses: Symptomatic treatment of clients

with nocturnal heartburn due to

gastroesophageal reflux disease

(GERD).

Contraindications: Use when an

increase in GI motility could be

harmful (i.e., in the presence of GI

hemorrhage, mechanical obstruction,

perforation). Concomitant use

with clarithromycin, erythromycin,

fluconazole, itraconazole, ketoconazole,

IV miconazole, or troleandomycin.

Special Concerns: Use with caution

during lactation. Safety and efficacy

have not been demonstrated in

children. Steady-state plasma levels

are generally higher in older clients as

a result of increased elimination

half-life although doses used are

similar to those in younger adults.

The increased rate of gastric emptying

time due to cisapride could affect

the rate of absorption of other drugs.

Side Effects: Oral: Dry mouth. GI: Diarrhea,

abdominal pain, nausea,

constipation, flatulence, dyspepsia,

vomiting, dry mouth. CNS: Headache,

insomnia, anxiety, nervousness,

dizziness, depression, tremor,

seizures, extrapyramidal effects, somnolence,

migraine. CV: Palpitation,

sinus tachycardia, tachycardia. Rarely,

serious cardiac arrhythmias, including

ventricular arrhythmias and torsades

de pointes associated with QT

prolongation (usually in those taking

antifungal drugs and other multiple

medications and who had preexisting

cardiac disease or arrhythmia risk

factors). Respiratory: Rhinitis, sinusitis,

coughing, pharyngitis, URTI. GU:

UTI, increased frequency of urination,

vaginitis. Hepatic: Hepatitis, elevated

liver enzymes. Musculoskeletal:

Arthralgia, back pain, myalgia. Hematologic:

Thrombocytopenia, leukopenia,

aplastic anemia, pancytopenia,

granulocytopenia (rare). Miscellaneous:

Pain, fever, viral infection, rash,

pruritus, abnormal vision, chest

pain, fatigue, dehydration, edema.

Drug Interactions

Alcohol / Possible ↑ sedative effect

Anticholinergics / ↓ Effect of cisapride

Benzodiazepines / Possible ↑ sedative

effect

Cimetidine / ↑ Peak plasma levels

of cisapride; also ↑ GI absorption of

cimetidine

Clarithromycin / ↑ Cisapride plasma

levels due to ↓ metabolism, resulting

in prolonged QT intervals

and possibility of ventricular arrhythmias

and torsades de pointes

Erythromycin / ↑ Cisapride plasma

levels due to ↓ metabolism, resulting

in prolonged QT intervals and

possibility of ventricular arrhythmias

and torsades de pointes

Fluconazole / ↑ Cisapride plasma

levels due to ↓ metabolism, resulting

in prolonged QT intervals and

possibility of ventricular arrhythmias

and torsades de pointes

Itraconazole / ↑ Cisapride plasma

levels due to ↓ metabolism, resulting

in prolonged QT intervals and

possibility of ventricular arrhythmias

and torsades de pointes

Ketoconazole / ↑ Cisapride plasma

levels due to ↓ metabolism, resulting

in prolonged QT intervals and

possibility of ventricular arrhythmias

and torsades de pointes

Miconazole (IV) / ↑ Cisapride plasma

levels due to ↓ metabolism, resulting

in prolonged QT intervals

and possibility of ventricular arrhythmias

and torsades de pointes

CISAPRIDE 167

C

M = Available in Canada bold italic = life-threatening side effect

Ranitidine / ↑ GI absorption of ranitidine

Troleandomycin / ↑ Cisapride plasma

levels due to ↓ metabolism, resulting

in prolonged QT intervals

and possibility of ventricular arrhythmias

and torsades de pointes

How Supplied: Suspension: 1

mg/mL; Tablet: 10 mg, 20 mg

Dosage –––––––––––––––––––––––––––––––

• Suspension, Tablets

GERD.

Adults, initial: 10 mg q.i.d. at least 15

min before meals and at bedtime.

May need to increase in some clients

to 20 mg q.i.d. 15 min before meals

and at bedtime.

DENTAL CONCERNS

General

1. Decreased saliva flow can put the

patient at risk for dental caries, periodontal

disease, and candidiasis.

2. A semisupine position for the

dental chair may be necessary to

help minimize or avoid GI effect of

the disease.

3. Patients on chronic drug therapy

may develop blood dyscrasias.

Symptoms include fever, sore throat,

bleeding, and poor wound healing.

Consultation with Primary Care

Provider

1. Patients with symptoms of blood

dyscrasias should be referred to

their primary care provider for complete

blood counts. Treatment

should be postponed until the results

are known.

2. Consultation may be required in order

to assess extent of disease control.

Client/Family Teaching

1. Review the importance of good

oral hygiene in order to prevent soft

tissue inflammation.

2. Review the proper use of oral hygiene

aids in order to prevent injury.

3. Daily home fluoride treatments

for persistent dry mouth.

4. Avoid alcohol-containing mouth

rinses and beverages.

5. Avoid caffeine-containing beverages.

6. Dry mouth can be treated with

tart, sugarless gum or candy, water,

sugar-free beverages, or with saliva

substitutes if dry mouth persists.

Citalopram hydrobromide

C[itaslopriamg hydrhobrom-idTe AL-oh-pram]

Pregnancy Category: C

Celexa

Classification: Selective serotonin reuptake

inhibitor

See also Selective Serotonin Reuptake

Inhibitors.

Action/Kinetics: Inhibts the reuptake

of serotonin in the central nervous

system. Absolute bioavailabity:

80% and not affected by food. Metabolized

in the liver and excreted by the

kidneys to a small extent.

Uses: Major depression. Non-FDA

Approved Uses: Obsessive-compulsive

disorder, panic disorder, schizophrenia,

alcoholism, diabetic peripheral

neuropathy.

Contraindications: Should not be

used within 14 days before or after

use of an MAOI.

Side Effects: Oral: Dry mouth. GI:

Nausea, diarrhea. CNS: Somnolence,

mania, hypomania, seizures, tremor.

GU: Delayed ejaculation. Miscellaneous:

Increased sweating, hyponatremia,

syndrome of inappropriate anitdiuretic

hormone secretion.

Drug Interactions: No drug interactions

reported.

How Supplied: Tablets: 20 mg, 40 mg

Dosage –––––––––––––––––––––––––––––––

• Tablets

Depression.

Adults: 20 mg q.d. (either morning or

evening) which can be increased to 40

mg q.d.

DENTAL CONCERNS

See Dental Concerns for Selective Serotonin

Reuptake Inhibitors.

Clarithromycin

C[larkithrolmaycin h-rith-roh-MY-sin]

Pregnancy Category: C

Biaxin [Rx]

Classification: Antibiotic, macrolide

See also Anti-Infectives.

168 CISAPRIDE

C

Action/Kinetics: Clarithromycin is

a macrolide antibiotic that acts by

binding to the 50S ribosomal subunit

of susceptible organisms, thus interfering

with or inhibiting microbial protein

synthesis. Rapidly absorbed

from the GI tract although food

slightly delays the onset of absorption

and the formation of the active metabolite

but does not affect the extent of

the bioavailability. Peak serum levels:

When fasting, 2 hr for the tablet

and 3 hr for the suspension. Steadystate

peak serum levels: 1 mcg/mL

within 2–3 days after 250 mg q 12 hr

and 2–3 mcg/mL after 500 mg q 12 hr.

Clarithromycin and 14-OH clarithromycin

(active metabolite) are

readily distributed to body tissues

and fluids. t1/2, elimination: 3–7 hr

(depending on the dose) for clarithromycin

and 5–6 hr for 14-OH clarithromycin.

Up to 30% of a dose is excreted

unchanged in the urine.

Uses: Mild to moderate infections

caused by susceptible strains of the

following. Adults. Pharyngitis/tonsillitis

due to Streptococcus pyogenes.

Acute maxillary sinusitis or acute

bacterial exacerbaton of chronic

bronchitis due to Sreptococcus pneumoniae,

Haemophilus influenzae,

and Moraxella catarrhalis. The active

metabolite, 14-OH clarithromycin,

has significant activity (twice the

parent compound) against H. influenzae.

Pneumonia due to Mycoplasma

pneumoniae, S. pneumoniae,

or Chlamydia pneumoniae. Uncomplicated

skin and skin structure

infections due to Staphylococcus aureus

or S. pyogenes. Treatment of

disseminated mycobacterial infections

due to Mycobacterium avium

(commonly seen in AIDS clients)

and M. intracellulare. Prevention of

disseminated M. avium complex in individuals

with advanced HIV.

Used with omeprazole or ranitidine

bismuth citrate (Tritec) for the

eradication of Helicobacter pylori infection

in clients with active duodenal

ulcers associated with H. pylori infection

also with amoxicillin and

lansoprazole for the same purpose.

Children. Pharyngitis or tonsillitis

due to S. pyogenes. Acute maxillary sinusitis

or acute otitis media due to S.

pneumoniae, H. influenzae, and M.

catarrhalis. Uncomplicated skin and

skin structure infections due to S.

aureus or S. pyogenes. Disseminated

mycobacterial infections due to M.

avium or M. intracellulare. Prevention

of disseminated M. avium complex

disease in clients with advanced

HIV infection. Community-acquired

pneumonia caused by M. pneumoniae,

Chlamydia pneumoniae, and S.

pneumoniae.

Contraindications: Hypersensitivity

to clarithromycin, other macrolide

antibiotics, or erythromycin. Clients

taking astemizole, terfenadine,

cisapride, or pimozide.

Special Concerns: Use with caution

in severe renal impairment with

or without concomitant hepatic impairment

and during lactation. Safety

and effectiveness in children less

than 6 months of age have not been

determined. Safety has not been determined

in MAC clients less than 20

months of age.

Side Effects: Oral: Abnormal taste,

glossitis, stomatitis, oral candidiasis.

GI: Diarrhea, nausea, dyspepsia, abdominal

discomfort or pain, pseudomembranous

colitis, vomiting. CNS:

Headache, dizziness, behavioral

changes, confusion, depersonalization,

disorientation, hallucinations,

insomnia, nightmares, vertigo. Allergic:

Urticaria, mild skin eruptions

and, rarely, anaphylaxis and Stevens-

Johnson syndrome. Hepatic: Hepatocellular

cholestatic hepatitis with or

without jaundice, increased liver enzymes,

hepatic failure. Miscellaneous:

Hearing loss (usually reversible),

alteration of sense of smell

(usually with taste perversion).

In children, the most common

side effects are diarrhea, vomiting,

abdominal pain, rash, and headache.

CLARITHROMYCIN 169

C

M = Available in Canada bold italic = life-threatening side effect

Drug Interactions

See also Drug Interactions for Erythromycins.

Anticholinergic drugs / ↓ Effects of

anticholinergic drugs

Astemizole / Combination not to be

used in clients who have preexisting

cardiac abnormalities or electrolyte

disturbances

Carbamazepine / ↑ Blood levels of

carbamazepine

Cisapride / Possibility of serious

cardiac arrhythmias, including ventricular

tachycardia, ventricular fibrillation,

torsade de pointes, and QT

prolongation

Oral contraceptives / ↓ Effectiveness

of oral contraceptives

Pimozide / ↑ Risk of sudden death;

do not use together

Terfenadine / ↑ Plasma levels of the

active acid metabolite of terfenadine;

↑ risk of cardiac arrhythmias,

including QT interval prolongation

Triazolam / ↑ Risk of somnolence

and confusion

How Supplied: Granule for reconstitution:

125 mg/5 mL, 250 mg/5 mL;

Tablet: 250 mg, 500 mg

Dosage –––––––––––––––––––––––––––––––

• Tablets, Oral Suspension

Pharyngitis, tonsillitis.

250 mg q 12 hr for 10 days.

Acute exacerbation of chronic

bronchitis due to S. pneumoniae or M.

catarrhalis; pneumonia due to S.

pneumoniae or M. pneumoniae;

skin and skin structure infections.

250 mg q 12 hr for 7–14 days.

Acute maxillary sinusitis, acute

exacerbation of chronic bronchitis

due to H. influenzae.

500 mg q 12 hr for 7–14 days.

Disseminated M. avium complex

or prophylaxis of M. avium complex.

Adults: 500 mg b.i.d.; children: 7.5

mg/kg b.i.d. up to 500 mg b.i.d.

NOTE: The usual daily dose for

children is 15 mg/kg q 12 hr for 10

days.

Community-acquired pneumonia

in children.

15 mg/kg/day of the suspension, divided

and given q 12 hr for 10 days.

Active duodenal ulcers associated

with H. pylori infection.

Clarithromycin, 500 mg t.i.d., with

omeprazole, 40 mg, each morning

for 2 weeks. Then, omeprazole is

given alone at a dose of 20 mg/day for

2 more weeks. Or, clarithromycin,

500 mg t.i.d., with ranitidine bismuth

citrate, 400 mg b.i.d., for 2 weeks.

Then, ranitidine bismuth citrate is

given alone at a dose of 400 mg

b.i.d. for 2 more weeks or, clarithromycin

500 mg, plus lansoprazole, 30

mg, and amoxicillin, 1 g b.i.d. for 2

weeks.

DENTAL CONCERNS

See also Dental Concerns for Anti-Infectives

and Erythromycins.

Client/Family Teaching

1. May take with or without meals;

food delays onset of absorption.

Drug may cause a bitter taste.

2. Report any persistent diarrhea; an

antibiotic-associated colitis may be

precipitated by C. difficile and require

alternative management.

3. Report if no symptom improvement

after 48–72 hr.

4. Use an additional nonhormonal

form of birth control if taking oral

contraceptives because their effectiveness

may be diminished.

5. Review the importance of good

oral hygiene in order to prevent soft

tissue inflammation.

Clindamycin

hydrochloride hydrate

C[linkdamlyciinn-dah-MY-sin]

Cleocin Hydrochloride, Dalacin C M

[Rx]

Clindamycin palmitate

hydrochloride

C[linkdamlyciinn-dah-MY-sin]

Cleocin Pediatric, Dalacin C Palmitate

M [Rx]

Clindamycin phosphate

C[linkdamlyciinn-dah-MY-sin]

Pregnancy Category: B (vaginal

cream, topical gel, lotion, solution)

170 CLARITHROMYCIN

C

Cleocin Vaginal Cream, Cleocin

Phosphate, Cleocin T, Clinda-Derm,

C/T/S, Dalacin C Phosphate M, Dalacin

T Topical M, Dalacin Vaginal

Cream M [Rx]

Classification: Antibiotic, clindamycin

and lincomycin

See also Anti-Infectives.

Action/Kinetics: A semisynthetic

antibiotic that suppresses protein

synthesis by microorganism by binding

to ribosomes (50S subunit) and

preventing peptide bond formation. Is

both bacteriostatic and bactericidal.

Peak serum concentration: PO, 4

mcg/mL after 300 mg; IM, 4.9

mcg/mL after 300 mg; IV, 14.7

mcg/mL after 300 mg. t1/2: 2.4–3 hr. In

serious infections the rate of IV administration

is adjusted to maintain appropriate

serum drug concentrations:

4–6 mcg/mL.

Uses: Should not be used for trivial infections.

Systemic. Serious respiratory

tract infections (e.g., empyema,

lung abscess, pneumonia) caused by

staphylococci, streptococci, and

pneumococci. Serious skin and soft

tissue infections, septicemia, intraabdominal

infections, pelvic inflammatory

disease, female genital tract infections.

May be the drug of choice for

Bacteroides fragilis. In combination

with aminoglycosides for mixed

aerobic and anaerobic bacterial infections.

Staphylococci-induced

acute hematogenous osteomyelitis.

Adjunct to surgery for chronic

bone/joint infections. Bacterial endocarditis

prophylaxis. Non-FDA Approved

Uses: Alternative to sulfonamides

in combination with pyrimethamine

in the acute treatment of

CNS toxoplasmosis in AIDS clients. In

combination with primaquine to

treat Pneumocystis carinii pneumonia.

Chlamydial infections in women.

Bacterial vaginosis due to Gardnerella

vaginalis. Topical Use. Used

topically for inflammatory acne vulgaris.

Vaginally to treat bacterial vaginosis.

Non-FDA Approved Uses: Treatment

of rosacea (lotion used).

Contraindications: Hypersensitivity

to either clindamycin or lincomycin.

Use in treating viral and minor

bacterial infections or in clients with

a history of regional enteritis, ulcerative

colitis, or antibiotic-associated

colitis. Lactation.

Special Concerns: Use with caution

in infants up to 1 month of age,

in clients with GI disease, liver or renal

disease, or a history of allergy or

asthma. Safety and efficacy of topical

products have not been established in

children less than 12 years of age.

Side Effects: Oral: Candidiasis. GI:

N&V, diarrhea, bloody diarrhea, abdominal

pain, GI disturbances, tenesmus,

flatulence, bloating, anorexia,

weight loss, esophagitis. Nonspecific

colitis, pseudomembranous

colitis (may be severe). Allergic:

Morbilliform rash (most common).

Also, maculopapular rash, urticaria,

pruritus, fever, hypotension. Rarely,

polyarteritis, anaphylaxis, erythema

multiforme. Hematologic: Leukopenia,

neutropenia, eosinophilia,

thrombocytopenia, agranulocytosis.

Miscellaneous: Superinfection. Also

sore throat, fatigue, urinary frequency,

headache.

Following IV use: Thrombophlebitis,

erythema, pain, swelling. Following

IM use: Pain, induration, sterile

abscesses.

Following topical use: Erythema,

irritation, dryness, peeling, itching,

burning, oiliness of skin.

Following vaginal use: Cervicitis,

vaginitis, vulvar irritation, urticaria,

rash.

NOTE: The injection contains benzyl

alcohol, which has been associated

with a fatal “gasping syndrome”

in infants.

Drug Interactions

Antiperistaltic antidiarrheals (opiates,

Lomotil) / ↑ Diarrhea due to ↓

removal of toxins from colon

Ciprofloxacin HCl / Additive antibacterial

activity

Erythromycin / Cross-interference

→ ↓ effect of both drugs

CLINDAMYCIN 171

C

M = Available in Canada bold italic = life-threatening side effect

Inhaled hydrocarbon anesthetics / ↑

Effect of inhaled hydrocarbon anesthetics

Kaolin (e.g., Kaopectate) / ↓ Effect

due to ↓ absorption from GI tract

Neuromuscular blocking agents / ↑

Effect of blocking agents

How Supplied: Clindamycin hydrochloride

hydrate: Capsule: 75 mg,

150 mg, 300 mg. Clindamycin palmitate

hydrochloride: Granule for reconstitution:

75 mg/5 mL. Clindamycin

phosphate: Vaginal cream: 2%;

Gel: 1%; Injection: 150 mg/mL, 300

mg/50 mL, 600 mg/50 mL, 900

mg/50 mL; Lotion: 1%; Solution: 1%;

Swab: 1%

Dosage –––––––––––––––––––––––––––––––

• PO only: Capsules, Oral Solution

Adults: Clindamycin HCl, Clindamycin

palmitate HCl: 150–450

mg q 6 hr, depending on severity of

infection. Pediatric: Clindamycin

HCl hydrate: 8–20 mg/kg/day divided

into three to four equal doses;

clindamycin palmitate HCl: 8–25

mg/kg/day divided into three to four

equal doses. Children less than 10

kg: Minimum recommended dose is

37.5 mg t.i.d.

• IV

Clindamycin phosphate. Adults:

0.6–2.7 g/day in two to four equal

doses depending on severity of infection.

Life-threatening infections.

4.8 g. Pediatric over 1 month:

15–40 mg/kg/day in three to four

equal doses depending on severity

of infections.

Severe infections.

No less than 300 mg/day, regardless

of body weight.

Acute pelvic inflammatory disease.

IV: 600 mg q.i.d. plus gentamicin, 2

mg/kg IV; then, gentamicin, 1.5

mg/kg t.i.d. IV. IV therapy should be

continued for 2 days after client improves.

The 10–14-day treatment cycle

should be completed using clindamycin,

PO: 450 mg q.i.d.

• Topical Gel, Lotion, or Solution

Apply thin film b.i.d. to affected areas.

One or more pledgets may also be

used.

• Vaginal Cream (2%)

One applicatorful (containing about

100 mg clindamycin phosphate),

preferably at bedtime, for 7 consecutive

days.

Bacterial endocarditis prophylaxis.

Adult: 600 mg 1 hr prior to procedure.

Children: 20 mg/kg of body

weight 1 hr prior to procedure not to

exceed adult dose. IV dose form for

patients who cannot take oral medications.

DENTAL CONCERNS

See also General Dental Concerns

for All Anti-Infectives.

Clofibrate

C[lofkibratleoh-FYE-brayt]

Pregnancy Category: C

Atromid-S, Claripex M, Novo–Fibrate

M [Rx]

Classification: Antihyperlipidemic

agent

Action/Kinetics: Clofibrate decreases

triglycerides and VLDL; cholesterol

and LDL are decreased less

predictably and less effectively. The

mechanism is not known with certainty

but may be due to increased catabolism

of VLDL to LDL and decreased

synthesis of VLDL by the liver. Cholesterol

formation is inhibited early

in the biosynthetic chain; excretion of

neutral streoids is increased. Peak

plasma levels: 3–6 hr. t1/2, plasma:

15 hr. Therapeutic effect: Onset,

2–5 days; maximum effect: 3

weeks. Triglycerides return to pretreatment

levels 2–3 weeks after

therapy is terminated. Clofibrate

is hydrolyzed to the active pchlorophenoxyisobutyric

acid which

is further metabolized and excreted in

the urine. The drug may concentrate

in fetal blood. LFTs should be performed

during therapy.

Uses: Dysbetalipoproteinemia (type

III hyperlipidemia) not responding

to diet. Hyperlipidemia (types IV

and V) with a risk of abdominal pain

172 CLINDAMYCIN

C

and pancreatitis not responding to

diet.

Contraindications: Impaired hepatic

or renal function, primary biliary

cirrhosis, lactation, pregnancy, children.

Special Concerns: Use with caution

in clients with gout and peptic ulcer.

Reduced dosage may be required

in geriatric clients due to agerelated

decreases in renal function.

Side Effects: Oral: Stomatitis. GI:

Nausea, dyspepsia, weight gain, gastritis,

vomiting, bloating, flatulence,

abdominal distress, loose stools, diarrhea,

hepatomegaly, cholelithiasis,

gallstones. CNS: Headaches, dizziness,

fatigue, weakness, drowsiness.

CV: Changes in blood-clotting time,

arrhythmias, increased or decreased

angina, intermittent claudication,

thromboembolic events, thrombophlebitis,

swelling and phlebitis at

xanthoma site, pulmonary embolism.

Skeletal muscle: Asthenia, arthralgia,

myalgia, weakness, muscle

cramps, aches. GU: Impotence, dysuria,

hematuria, decreased urine

output, decreased libido, proteinuria.

Hematologic: Anemia, leukopenia,

eosinophilia. Dermatologic: Allergic

reactions, including urticaria, skin

rash, dry skin, pruritus, dry brittle

hair, alopecia. Other: Dyspnea, polyphagia,

flu-like symptoms, noncardiovascular

death.

Drug Interactions: No significant

drug interactions that affect oral

health or with medications commonly

used in dentistry.

How Supplied: Capsule: 500 mg

Dosage –––––––––––––––––––––––––––––––

• Capsules

Antihyperlipidemic.

Adults: 500 mg q.i.d. Therapeutic

response may take several weeks to

become apparent. Drug must be administered

on a continuous basis because

lowered levels of cholesterol

and other lipids will return to elevated

state within several weeks after

administration is stopped. Discontinue

after 3 months if response is

poor.

DENTAL CONCERNS

None reported.

Client/Family Teaching

1. Stress the importance of good

oral hygiene in order to prevent soft

tissue damage.

Clomipramine

hydrochloride

C[lomkipralmoine hhydroc-hloMride IP-rah-meen]

Pregnancy Category: C

Anafranil, Apo–Clomipramine M,

Gen-Clomipramine M, Novo-

Clopamine M [Rx]

Classification: Antidepressant, tricyclic

See also Antidepressants, Tricyclic.

Action/Kinetics: Significant anticholinergic

and sedative effects as

well as moderate orthostatic hypotension.

Significant serotonin uptake

blocking activity and moderate

blocking activity for norepinephrine.

t1/2: 19–37 hr. Effective plasma levels:

80–100 ng/mL. Time to reach

steady state: 7–14 days. Metabolized

to the active desmethylclomipramine.

Uses: Obsessive-compulsive disorder

in which the obsessions or compulsions

cause marked distress, significantly

interfere with social or occupational

activities, or are

time-consuming. Panic attacks and

cataplexy associated with narcolepsy.

Contraindications: To relieve

symptoms of depression.

Special Concerns: Safety has not

been established for use during lactation

or in children less than 10 years

of age.

Additional Side Effects: Hyperthermia,

especially when used with other

drugs. Increased risk of seizures. Aggressive

reactions, asthenia, anemia,

eructation, failure to ejaculate, laryngitis,

vestibular disorders, muscle

weakness.

CLOMIPRAMINE HYDROCHLORIDE 173

C

M = Available in Canada bold italic = life-threatening side effect

How Supplied: Capsule: 25 mg, 50

mg, 75 mg

Dosage –––––––––––––––––––––––––––––––

• Capsules

Adult, initial: 25 mg/day; then, increase

gradually to approximately

100 mg during the first 2 weeks (depending

on client tolerance). The

dose may then be increased slowly to

a maximum of 250 mg/day over the

next several weeks. Adolescents,

children, initial: 25 mg/day; then,

increase gradually during the first 2

weeks to a maximum of 100 mg or 3

mg/kg, whichever is less. The dose

may then be increased to a maximum

daily dose of 3 mg/kg or 200

mg, whichever is less. Maintenance,

adults and children: Adjust

the dose to the lowest effective dose

with periodic reassessment to determine

need for continued therapy.

DENTAL CONCERNS

See also Dental Concerns for Antidepressants,

Tricyclic.

Clonazepam

C[lonkazelpaom h-NAY-zeh-pam]

Alti-Clonazepam M, Apo-

Clonazepam M, Dom-Clonazepam

M, Klonopin, Nu-Clonazepam M,

PMS–Clonazepam M, Rivotril M [C-IV]

[Rx]

Classification: Anticonvulsant, miscellaneous

See also Anticonvulsants.

Action/Kinetics: Benzodiazepine

derivative which increases presynaptic

inhibition and suppresses the

spread of seizure activity. Peak

plasma levels: 1–2 hr. t1/2: 18–60 hr.

Therapeutic serum levels: 20–80

ng/mL. More than 80% bound to

plasma protein; metabolized almost

completely in the liver to inactive

metabolites, which are excreted in

the urine.

Even though a benzodiazepine,

clonazepam, is used only as an anticonvulsant.

However, contraindications,

side effects, and so forth are

similar to those for diazepam.

Uses: Absence seizures (petit mal)

including Lennox-Gastaut syndrome,

akinetic and myoclonic seizures.

Some effectiveness in clients resistant

to succinimide therapy. Non-

FDA Approved Uses: Parkinsonian

dysarthria, acute manic episodes of bipolar

affective disorder, leg movements

(periodic) during sleep, adjunct

in treating schizophrenia, neuralgias,

multifocal tic disorders.

Contraindications: Sensitivity to

benzodiazepines. Severe liver disease,

acute narrow-angle glaucoma.

Pregnancy.

Special Concerns: Effects on lactation

not known.

Side Effects: Oral: Dry mouth, increased

salivation, increased bleeding.

See also Sedative Hypnotics

(Antianxiety), Antimanic Drugs, .

Additional Side Effects: In clients

in whom different types of seizure

disorders exist, clonazepam may

elicit or precipitate grand mal seizures.

Drug Interactions

CNS depressants / Potentiation of

CNS depressant effect of clonazepam

Phenobarbital / ↓ Effect of clonazepam

due to ↑ breakdown by liver

Phenytoin / ↓ Effect of clonazepam

due to ↑ breakdown by liver

How Supplied: Tablet: 0.5 mg, 1

mg, 2 mg

Dosage –––––––––––––––––––––––––––––––

• Tablets

Seizure disorders.

Adults, initial: 0.5 mg t.i.d. Increase

by 0.5–1 mg/day q 3 days until seizures

are under control or side effects

become excessive; maximum:

20 mg/day. Pediatric up to 10

years or 30 kg: 0.01–0.03

mg/kg/day in two to three divided

doses up to a maximum of 0.05

mg/kg/day. Increase by increments

of 0.25–0.5 mg q 3 days until seizures

are under control or maintenance

of 0.1–0.2 mg/kg is attained.

Parkinsonian dysarthria.

Adults: 0.25–0.5 mg/day.

Acute manic episodes of bipolar

affective disorder.

174 CLOMIPRAMINE HYDROCHLORIDE

C

Adults: 0.75–16 mg/day.

Periodic leg movements during

sleep.

Adults: 0.5–2 mg nightly.

Adjunct to treat schizophrenia.

Adults: 0.5–2 mg/day.

Neuralgias.

Adults: 2–4 mg/day.

Multifocal tic disorders.

Adults: 1.5–12 mg/day.

DENTAL CONCERNS

See also Dental Concerns for Sedative-

Hypnotics (Anti-anxiety)/Antimanic

Drugs and Anticonvulsants.

Clonidine hydrochloride

C[lonKidine LhydOrochloriHde -nih-deen]

Pregnancy Category: C

Apo-Clonidine M; Catapres; Catapres-

TTS-1, -2, and -3; Dixarit M; Duraclon,

Novo–Clonidine M, Nu-

Clonidine M [Rx]

Classification: Antihypertensive, centrally

acting antiadrenergic

See also Antihypertensive Agents.

Action/Kinetics: Stimulates alphaadrenergic

receptors of the CNS,

which results in inhibition of the

sympathetic vasomotor centers and

decreased nerve impulses. Thus,

bradycardia and a fall in both SBP

and DBP occur. Plasma renin levels

are decreased, while peripheral venous

pressure remains unchanged.

Few orthostatic effects. Although

NaCl excretion is markedly decreased,

potassium excretion remains

unchanged. Tolerance to the

drug may develop. Onset, PO:

30–60 min; transdermal: 2–3 days.

Peak plasma levels, PO: 3–5 hr;

transdermal: 2–3 days. Maximum

effect, PO: 2–4 hr. Duration, PO:

12–24 hr; transdermal: 7 days (with

system in place). t1/2: 12–16 hr. Approximately

50% excreted unchanged

in the urine; 20% excreted

through the feces.

The transdermal dosage form contains

the following levels of drug:

Catapres-TTS-1 contains 2.5 mg

clonidine (surface area 3.5 cm2),

with 0.1 mg released daily; Catapres-

TTS-2 contains 5 mg clonidine (surface

area 7 cm2), with 0.2 mg released

daily; and Catapres-TTS-3

contains 7.5 mg clonidine (surface

area 10.5 cm2), with 0.3 mg released

daily.

Epidural use causes analgesia at

presynaptic and postjunctional alpha-

2-adrenergic receptors in the

spinal cord due to prevention of

pain signal transmission to the brain.

t1/2, distribution, epidural: 19 min;

elimination: 22 hr.

Uses: Oral, Transdermal: Mild to

moderate hypertension. A diuretic or

other antihypertensive drugs, or

both, are often used concomitantly.

Non-FDA Approved Uses: Alcohol

withdrawal, atrial fibrillation, attention

deficit hyperactivity disorder,

constitutional growth delay in children,

cyclosporine-associated nephrotoxicity,

diabetic diarrhea, Gilles de la

Tourette’s syndrome, hyperhidrosis,

hypertensive emergencies, mania,

menopausal flushing, opiate detoxification,

diagnosis of pheochromocytoma,

postherpetic neuralgia, psychosis

in schizophrenia, reduce allergen-

induced inflammatory

reactions in extrinsic asthma, restless

leg syndrome, facilitate smoking

cessation, ulcerative colitis.

Epidural: With opiates for severe

pain in cancer clients not relieved by

opiate analgesics alone. Most effective

for neuropathic pain.

Contraindications: Hypersensitivity

to the drug or its components.

Special Concerns: Use with caution

in presence of severe coronary insufficiency,

recent MI, cerebrovascular

disease, or chronic renal failure.

Use with caution during lactation.

Safe use in children not established.

Geriatric clients may be more sensitive

to the hypotensive effects; a decreased

dosage may also be necessary

in these clients due to age-related

decreases in renal function. For children,

restrict epidural use to severe

intractable pain from malignancy

that is not responsive to epidural or

CLONIDINE HYDROCHLORIDE 175

C

M = Available in Canada bold italic = life-threatening side effect

spinal opiates or other analgesic approaches.

Side Effects: CNS: Drowsiness

(common), sedation, confusion, dizziness,

headache, fatigue, malaise,

nightmares, nervousness, restlessness,

anxiety, mental depression, increased

dreaming, insomnia, hallucinations,

delirium, agitation. Oral:

Dry mouth (common), taste changes.

GI: Constipation, anorexia, N&V, parotid

pain, weight gain, hepatitis,

parotitis, ileus, pseudo-obstruction,

abdominal pain. CV: CHF, severe

hypotension, Raynaud’s phenomenon,

abnormalities in ECG, palpitations,

tachycardia and bradycardia,

postural hypotension, conduction

disturbances, sinus bradycardia,

CVA. Dermatologic: Urticaria, skin

rashes, sweating, angioneurotic edema,

pruritus, thinning of hair, alopecia,

skin ulcer. GU: Impotence, urinary

retention, decreased sexual activity,

loss of libido, nocturia, difficulty in urination,

UTI. Respiratory: Hypoventilation,

dyspnea. Musculoskeletal:

Muscle or joint pain, leg cramps,

weakness. Other: Gynecomastia, increase

in blood glucose (transient), increased

sensitivity to alcohol, chest

pain, tinnitus, hyperaesthesia, pain,

infection, thrombocytopenia, syncope,

blurred vision, withdrawal

syndrome, dryness of mucous membranes

of nose; itching, burning,

dryness of eyes; skin pallor, fever.

Transdermal products: Localized

skin reactions, pruritus, erythema,

allergic contact sensitization and

contact dermatitis, localized vesiculation,

hyperpigmentation, edema, excoriation,

burning, papules, throbbing,

blanching, generalized macular

rash.

NOTE: Rebound hypertension

may be manifested if clonidine is

withdrawn abruptly.

Drug Interactions

Alcohol / ↑ Depressant effects

CNS depressants / ↑ Depressant effect

Levodopa / ↓ Effect of levodopa

Local anesthetics / Epidural clonidine

→ prolonged duration of epidural

local anesthetics

Opioid analgesics / Potentiation of

hypotensive effect of clonidine

NSAIDs, especially indomethacin / ↓

Hypotensive effects

Sympathomimetics / ↓ Hypotensive

effects

Tricyclic antidepressants / Blocks

antihypertensive effect

How Supplied: Film, extended release:

0.1 mg/24 hr, 0.2 mg/24 hr,

0.3 mg/24 hr; Tablet: 0.1 mg, 0.2 mg,

0.3 mg

Dosage –––––––––––––––––––––––––––––––

• Tablets

Hypertension.

Initial: 100 mcg b.i.d.; then, increase

by 100–200 mcg/day until desired

response is attained; maintenance:

200–600 mcg/day in divided

doses (maximum: 2400 mcg/day).

Tolerance necessitates increased

dosage or concomitant administration

of a diuretic. Gradual increase of

dosage after initiation minimizes

side effects. Pediatric: 50–400 mcg

b.i.d.

NOTE: In hypertensive clients unable

to take PO medication, clonidine

may be administered sublingually

at doses of 200–400 mcg/day.

Alcohol withdrawal.

300–600 mcg q 6 hr.

Atrial fibrillation.

75 mcg 1–2 times/day with or without

digoxin.

Attention deficit hyperactivity disorder.

5 mcg/kg/day for 8 weeks.

Constitutional growth delay in

children.

37.5–150 mcg/m2/day.

Diabetic diarrhea.

100–600 mcg q 12 hr.

Gilles de la Tourette syndrome.

150–200 mcg/day.

Hyperhidrosis.

250 mcg 3–5 times/day.

Hypertensive urgency (diastolic >

120 mm Hg).

Initial: 100–200 mcg; then, 50–100

mcg q hr to a maximum of 800 mcg.

Menopausal flushing.

100–400 mcg/day.

Withdrawal from opiate dependence.

176 CLONIDINE HYDROCHLORIDE

C

15–16 mcg/kg/day.

Diagnosis of pheochromocytoma.

300 mcg.

Postherpetic neuralgia.

200 mcg/day.

Psychosis in schizophrenia.

Less than 900 mcg/day.

Reduce allergen-induced inflammation

in extrinsic asthma.

150 mcg for 3 days or 75 mcg/1.5

mL saline by inhalation.

Restless leg syndrome.

100–300 mcg/day, up to 900

mcg/day.

Facilitate cessation of smoking.

150–400 mcg/day.

Ulcerative colitis.

300 mcg t.i.d.

• Transdermal

Hypertension.

Initial: Use 0.1-mg system; then, if after

1–2 weeks adequate control has

not been achieved, can use another

0.1-mg system or a larger system.

The antihypertensive effect may not

be seen for 2–3 days. The system

should be changed q 7 days.

Cyclosporine-associated nephrotoxicity.

100–200 mcg/day.

Diabetic diarrhea.

0.3 mg/24 hr patch (1 or 2 patches/

week).

Menopausal flushing.

100 mcg/24-hr patch.

Facilitate cessation of smoking.

200 mcg/24-hr patch.

• Epidural infusion

Analgesia.

Initial: 30 mcg/hr. Dose may then be

titrated up or down, depending on

pain relief and side effects.

DENTAL CONCERNS

See also Dental Concerns for Antihypertensive

Agents.

General

1. If patient is experiencing changes

in taste, consider clonidine as the

causative agent.

Clopidogrel bisulfate

C[lopkidoglreol bisuhlfate-PID-oh-grel]

Pregnancy Category: B

Plavix [Rx]

Classification: Antiplatelet drug

Action/Kinetics: Inhibits platelet

aggregation by inhibiting binding of

adenosine diphosphate (ADP) to its

platelet receptor and subsequent

ADP-mediative activation of glycoprotein

GPIIb/IIIa complex. Drug

modifies receptor irreversibly; thus,

platelets are affected for remainder

of their lifespan. Also inhibits platelet

aggregation caused by agonists other

than ADP by blocking amplification of

platelet activation by released ADP.

Rapidly absorbed from GI tract; food

does not affect bioavailability. Peak

plasma levels: About 1 hr. Extensively

metabolized in liver; about

50% excreted in urine and 46% in feces.

t1/2, elimination: 8 hr.

Uses: Reduction of MI, stroke, and

vascular death in clients with atherosclerosis

documented by recent

stroke, MI, or established peripheral

arterial disease.

Contraindications: Lactation. Active

pathological bleeding such as

peptic ulcer or intracranial hemorrhage.

Special Concerns: Use with caution

in those at risk of increased

bleeding from trauma, surgery, or

other pathological conditions. Safety

and efficacy have not been determined

in children.

Side Effects: CV: Edema, hypertension,

intracranial hemorrhage. GI:

Abdominal pain, dyspepsia, diarrhea,

nausea, hemorrhage, ulcers

(peptic, gastric, duodenal). CNS:

Headache, dizziness, depression.

Body as a whole: Chest pain, accidental

injury, flu-like symptoms,

pain, fatigue. Respiratory: Upper respiratory

tract infection, dyspnea,

rhinitis, bronchitis, coughing. Hematologic:

Purpura, epistaxis. Musculoskeletal:

Arthralgia, back pain. Dermatologic:

Disorders of skin/appendages,

rash, pruritus.

Miscellaneous: Urinary tract infection.

CLOPIDOGREL BISULFATE 177

C

M = Available in Canada bold italic = life-threatening side effect

Drug Interactions

Aspirin / ↑ Risk of bleeding and occult

blood loss

NSAIDs / ↑ Risk of bleeding and occult

blood loss

How Supplied: Tablets: 75 mg

Dosage –––––––––––––––––––––––––––––––

• Tablets

Reduction of atherosclerotic

events.

Adults: 75 mg once daily with or

without food.

DENTAL CONCERNS

General

Patients taking this drug require

PT test prior to their dental visit because

of the increased risk for prolonged

bleeding.

1. Local hemostatic measures may

be necessary to prevent excessive

bleeding.

2. Platelet aggregation returns to

normal within 5–7 days of discontinuing

therapy.

Consultation with Primary Care

Provider

1. Consultation with primary care

provider may be necessary to assess

patient status (disease control and

ability to tolerate stress). Include patient’s

most current PT time.

Client/Family Teaching

1. Use caution when using oral hygiene

aids.

2. Brush teeth with a soft-bristle

tooth brush.

3. Avoid OTC agents especially aspirin

and NSAIDs.

4. Report any unusual bruising or

bleeding; advise others esp. dentist of

prescribed therapy, before surgery

or new meds added.

5. Drug should be discontinued 7

days prior to elective surgery (including

oral surgery).

Clotrimazole

C[lotkrimalzoole h-TRY-mah-zohl]

Pregnancy Category: C (systemic

use); B (topical/vaginal use)

Canesten M, Canestin 1 M, Canestin

3 M, Clotrimaderm M, FemCare,

Gyne-Lotrimin, Lotrimin, Lotrimin AF,

Mycelex, Mycelex-7, Mycelex-G, Mycelex

OTC, Myclo-Derm M, Myclo-

Gyne M, Neo-Zol [OTC] [Rx]

Classification: Antifungal

See also Anti-Infectives.

Action/Kinetics: Depending on

concentration, may be fungistatic or

fungicidal. Acts by inhibiting the biosynthesis

of sterols, resulting in

damage to the cell wall and subsequent

loss of essential intracellular

elements due to altered permeability.

May also inhibit oxidative and

peroxidative enzyme activity and inhibit

the biosynthesis of triglycerides

and phospholipids by fungi. When

used for Candida albicans, the drug

inhibits transformation of blastophores

into the invasive mycelial

form. Poorly absorbed from the GI

tract and metabolized in the liver to

inactive compounds that are excreted

through the feces. Duration: up to 3

hr.

Uses: Broad-spectrum antifungal effective

against Malassezia furfur,

Trichophyton rubrum, Trichophyton

mentagrophytes, Epidermophyton

floccosum, Microsporum canis, C.

albicans. Oral troche: Oropharyngeal

candidiasis. Reduce incidence

of oropharyngeal candidiasis in clients

who are immunocompromised due

to chemotherapy, radiotherapy, or

steroid therapy used for leukemia,

solid tumors, or kidney transplant.

Topical OTC products: Topically to

treat tinea pedis, tinea cruris, and

tinea corporis. Topical prescription

products: Same as OTC plus candidiasis

and tinea versicolor. Vaginal

products: Vulvovaginal candidiasis.

Contraindications: Hypersensitivity.

First trimester of pregnancy.

Special Concerns: Use with caution

during lactation. Safety and effectiveness

for PO use in children less

than 3 years of age has not been determined.

Side Effects: Skin: Irritation including

rash, stinging, pruritus, urticaria, erythema,

peeling, blistering, edema.

Vaginal: Lower abdominal cramps;

urinary frequency; bloating; vaginal irritation,

itching or burning; dyspareunia.

Hepatic: Abnormal liver

178 CLOPIDOGREL BISULFATE

C

function tests. GI: N&V following

use of troche.

Drug Interactions

Astemizole / Serious CV side effects,

including torsades de pointes and

other ventricular arrhythmias (including

QT interval prolongation),

cardiac arrest, and death

Terfenadine / Serious CV side effects,

including torsades de pointes

and other ventricular arrhythmias

(including QT interval prolongation),

cardiac arrest, and death

How Supplied: Kit; Lotion: 1%; Lozenge/

Troche: 10 mg; Solution: 1%;

Topical cream: 1%; Vaginal cream:

1%; Vaginal tablet: 100 mg, 500 mg

Dosage –––––––––––––––––––––––––––––––

• Troche

Treatment of oropharyngeal candidiasis.

One troche (10 mg) 5 times/day for 14

consecutive days.

Prophylaxis of oropharyngeal

candidiasis.

One troche t.i.d. for duration of chemotherapy

or until maintenance

doses of steroids are instituted.

• Topical Cream, Lotion, Solution

(each 1%)

Massage into affected skin and surrounding

areas b.i.d. in morning and

evening for 7 consecutive days. Diagnosis

should be reevaluated if no

improvement occurs in 4 weeks.

• Vaginal Tablets

One 100-mg tablet/day at bedtime

for 7 days. One 500-mg tablet can be

inserted once at bedtime.

• Vaginal Cream (1%)

5 g (one full applicator)/day at bedtime

for 7 consecutive days.

• Vaginal Inserts and Clotrimazole,

1%

Vaginal yeast infections.

Insert daily for 3 consecutive days.

DENTAL CONCERNS

See also General Dental Concerns

for All Anti-Infectives.

Client/Family Teaching

1. Soak full or partial dentures in an

antifungal solution overnight until

oral infection heals. Prolonged infection

may require new dentures.

2. Replace toothbrush used during

treatment of oral infection in order to

prevent reinfection.

3. Long-term therapy may be necessary.

Complete the full course of

antifungal therapy.

Cloxacillin sodium

C[loxkacilllino sodiuxm -ah-SILL-in]

Pregnancy Category: B

Apo-Cloxi M, Cloxapen, Novo-Cloxin

M, Nu-CLoxi M, Orbenin M, Taro-

Cloxacillin M, Tegopen [Rx]

Classification: Antibiotic, penicillin

See also Anti-Infectives and Penicillins.

Action/Kinetics: Resistant to penicillinase

and is acid stable. Peak plasma

levels: 7–15 mcg/mL after 30–60

min. t1/2: 30 min. Protein binding:

88%–96%. Well absorbed from GI

tract. Mostly excreted in urine, but

some excreted in bile.

Uses: Infections caused by penicillinase-

producing staphylococci, including

pneumococci, group A betahemolytic

streptococci, and penicillin

G-sensitive staphylococci.

Contraindications: Hypersensitivity

to penicillins.

Special Concerns: Hypersensitivity to

cephalosporins.

Side Effects: See also Anti-Infectives

and Penicillins.

Drug Interactions

Probenecid / ↑ Cloxacillin concentrations

See also Anti-Infectives and Penicillins.

How Supplied: Capsule: 250 mg,

500 mg; Powder for reconstitution:

125 mg/5 mL

Dosage –––––––––––––––––––––––––––––––

• Capsules, Oral Solution

Skin and soft tissue infections,

mild to moderate URTIs.

Adults and children over 20 kg:

250 mg q 6 hr; pediatric, less than

20 kg: 50 mg/kg/day in divided doses

q 6 hr.

CLOXACILLIN SODIUM 179

C

M = Available in Canada bold italic = life-threatening side effect

Lower respiratory tract infections

or disseminated infections.

Adults and children over 20 kg:

0.5 g q 6 hr; pediatric, less than 20

kg: 100 (or more) mg/kg/day in divided

doses q 6 hr. Alternatively, a dose

of 50–100 mg/kg/day (up to a maximum

of 4 g/day) divided q 6 hr may

be used for infants and children.

DENTAL CONCERNS

See also Dental Concerns for Anti-Infectives

and Penicillins.

Client/Family Teaching

1. Review appropriate guidelines

for administration; include frequency

and amount. Shake well before using;

refrigerate; discard any left after 14

days.

2. Take as directed, 1 hr before or 2

hr after meals; food interferes with absorption

of drug.

3. Complete prescription even feeling

better.

Clozapine

C[lozKapineLOH-zah-peen]

Pregnancy Category: B

Clozaril [Rx]

Classification: Antipsychotic

Action/Kinetics: Interferes with the

binding of dopamine to both D-1

and D-2 receptors; more active at

limbic than at striatal dopamine receptors.

Thus, is relatively free from extrapyramidal

side effects and does

not induce catalepsy. Also acts as an

antagonist at adrenergic, cholinergic,

histaminergic, and serotonergic receptors.

Increases the amount of

time spent in REM sleep. Food does

not affect the bioavailability of clozapine.

Peak plasma levels: 2.5 hr.

Average maximum concentration