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
C
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
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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
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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
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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.
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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
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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
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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