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Pronunciation |
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(glye
koe PYE roe
late) |
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U.S. Brand
Names |
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Robinul®; Robinul®
Forte |
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Generic
Available |
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Yes |
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Synonyms |
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Glycopyrronium Bromide |
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Pharmacological Index |
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Anticholinergic Agent |
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Use |
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Adjunct in treatment of peptic ulcer disease; inhibit salivation and
excessive secretions of the respiratory tract preoperatively; reversal of
neuromuscular blockade; control of upper airway secretions |
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Pregnancy Risk
Factor |
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B |
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Contraindications |
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Narrow-angle glaucoma, acute hemorrhage, tachycardia, hypersensitivity to
glycopyrrolate or any component; ulcerative colitis, obstructive uropathy,
paralytic ileus, obstructive disease of GI tract |
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Warnings/Precautions |
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Not recommended in children <12 years of age for the management of peptic
ulcer; infants, patients with Down syndrome, and children with spastic paralysis
or brain damage may be hypersensitive to antimuscarine effects. Use caution in
elderly, patients with autonomic neuropathy, hepatic or renal disease,
ulcerative colitis may predispose megacolon, hyperthyroidism, CAD, CHF,
arrhythmias, tachycardia, BPH, hiatal hernia, with reflux. |
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Adverse
Reactions |
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>10%:
Dermatologic: Dry skin
Gastrointestinal: Constipation, dry throat, xerostomia
Local: Irritation at injection site
Respiratory: Dry nose
Miscellaneous: Diaphoresis (decreased)
1% to 10%:
Dermatologic: Increased sensitivity to light
Endocrine & metabolic: Decreased flow of breast milk
Gastrointestinal: Dysphagia
<1%: Orthostatic hypotension, ventricular fibrillation, tachycardia,
palpitations, confusion, drowsiness, headache, loss of memory, fatigue, ataxia,
rash, bloated feeling, nausea, vomiting, dysuria, weakness, increased
intraocular pain, blurred vision |
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Overdosage/Toxicology |
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Symptoms of overdose include blurred vision, urinary retention, tachycardia,
absent bowel sounds
Anticholinergic toxicity is caused by strong binding of the drug to
cholinergic receptors. For anticholinergic overdose with severe life-threatening
symptoms, physostigmine 1-2 mg (0.5 mg or 0.02 mg/kg for children) S.C. or I.V.,
slowly may be given to reverse these effects. |
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Drug
Interactions |
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Decreased effect of levodopa
Increased toxicity with amantadine, cyclopropane |
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Stability |
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Unstable at pH >6; incompatible with secobarbital (immediate
precipitation), sodium bicarbonate (gas evolves), thiopental (immediate
precipitation) |
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Mechanism of
Action |
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Blocks the action of acetylcholine at parasympathetic sites in smooth muscle,
secretory glands, and the CNS |
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Pharmacodynamics/Kinetics |
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Oral: Onset of action: Within 50 minutes; Peak effect: Within 1 hour
I.M.: Onset of action: 20-40 minutes
I.V.: Onset of action: 10-15 minutes
Duration:
Vagal effects: 2-3 hours
Inhibition of salivation: Up to 7 hours
Anticholinergic effects (after oral administration): 8-12 hours
Absorption: Oral: Poor and erratic
Bioavailability: ~10% |
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Usual Dosage |
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Children:
Control of secretions:
Oral: 40-100 mcg/kg/dose 3-4 times/day
I.M., I.V.: 4-10 mcg/kg/dose every 3-4 hours; maximum: 0.2 mg/dose or 0.8
mg/24 hours
Intraoperative: I.V.: 4 mcg/kg not to exceed 0.1 mg; repeat at 2- to 3-minute
intervals as needed
Preoperative: I.M.:
<2 years: 4.4-8.8 mcg/kg 30-60 minutes before procedure
>2 years: 4.4 mcg/kg 30-60 minutes before procedure
Children and Adults: Reverse neuromuscular blockade: I.V.: 0.2 mg for each 1
mg of neostigmine or 5 mg of pyridostigmine administered
Adults:
Intraoperative: I.V.: 0.1 mg repeated as needed at 2- to 3-minute intervals
Preoperative: I.M.: 4.4 mcg/kg 30-60 minutes before procedure
Peptic ulcer:
Oral: 1-2 mg 2-3 times/day
I.M., I.V.: 0.1-0.2 mg 3-4 times/day |
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Mental Health: Effects
on Mental Status |
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May rarely cause drowsiness, confusion, amnesia |
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Mental Health:
Effects on Psychiatric
Treatment |
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Concurrent use with other psychotropics may produce additive sedation and dry
mouth |
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Dental Health: Local
Anesthetic/Vasoconstrictor
Precautions |
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No information available to require special precautions |
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Dental Health:
Effects on Dental Treatment |
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>10% of patients will experience significant dry mouth (reversible with
cessation of drug therapy) |
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Patient
Information |
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Take as directed before meals; do not increase dose and do not discontinue
without consulting prescriber. Void before taking medication. You may experience
dizziness or blurred vision (use caution when driving or engaging in tasks that
require alertness until response to drug is known); dry mouth (sucking on
lozenges may help); photosensitivity (wear dark glasses in bright sunlight); or
impotence (temporary). Report excessive and persistent anticholinergic effects
(blurred vision, headache, flushing, tachycardia, nervousness, constipation,
dizziness, insomnia, mental confusion or excitement, dry mouth, altered taste
perception, dysphagia, palpitations, bradycardia, urinary hesitancy or
retention, impotence, decreased sweating). Breast-feeding precautions:
Consult prescriber if breast-feeding. |
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Nursing
Implications |
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Dilute to a concentration of 2 mcg/mL (maximum concentration: 200 mcg/mL);
infuse over 15-20 minutes; may be administered direct I.V. at a maximum rate of
20 mcg/minute
Monitor heart rate; anticholinergic effects |
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Dosage Forms |
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Injection, as bromide: 0.2 mg/mL (1 mL, 2 mL, 5 mL, 20 mL)
Robinul®: 0.2 mg/mL (1 mL, 2 mL, 5 mL, 20 mL)
Tablet, as bromide:
Robinul®: 1 mg
Robinul® Forte: 2 mg
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