Propantheline


Concise Prescribing Info
Indications/Uses
Listed in Dosage.
Dosage/Direction for Use
Adult : PO GI tract spasm; Adjunct in the treatment of peptic ulcer 15 mg 3 times/day and 30 mg at bedtime. Up to 120 mg/day may be needed. Adult enuresis; Hyperhidrosis; Urinary incontinence 15-30 mg 2-3 times/day.
Dosage Details
Oral
Adult enuresis, Hyperhidrosis, Urinary incontinence
Adult: 15-30 mg bid/tid.

Oral
Adjunct in peptic ulcer, Gastrointestinal tract spasm
Adult: 15 mg tid and 30 mg at bedtime. Doses up to 120 mg daily may be needed.
Child: For relief of GI spasm: 1 mth - 12 yr: 300 mcg/kg (max 15 mg), given 3-4 times daily.
Elderly: 7.5 mg tid. May increase to a max of 30 mg tid.
Administration
Should be taken on an empty stomach. Take 30 min before meals and at bedtime.
Contraindications
Glaucoma, obstructive diseases of GI or urinary tract, severe ulcerative colitis or toxic megacolon, intestinal atony, hiatus hernia associated with reflux oesophagitis, unstable cardiovascular adjustment in acute bleeding, prostatic enlargement, myasthenia gravis, paralytic ileus, pyloric stenosis, angle-closure glaucoma.
Special Precautions
Hyperthyroidism, congestive heart failure, coronary heart disease, cardiac arrhythmias, acute MI, cardiac insufficiency, hypertension. Pregnancy and lactation; elderly. Patients with fever, diarrhoea, GI reflux disease or ulcerative colitis. Hepatic or renal impairment. Increased risk of fever or heat stroke in patients exposed to high environmental temperature. Caution when used in patients with Down's syndrome.
Adverse Reactions
Dry mouth, thirst, difficulty in swallowing, skin dryness, flushing, reduced sweating, heat stroke, constipation, nausea and vomiting. Pupil dilatation with loss of accomodation and increased sensitivity to light; increased intra-ocular pressure. Bradycardia followed by tachycardia, arrhythmias and palpitations. Glaucoma, urinary hesitancy and retention, orthostatic hypotension especially in elderly.
Potentially Fatal: Toxic megacolon due to preexisting ulcerative colitis.
Overdosage
Severe intoxication may result in convulsion, circulatory failure, coma, delirium, resp depression, restlessness and hallucinations. Treatment: Empty the stomach and administer activated charcoal. Supportive treatment (e.g. oxygen, admin of fluids and assisted ventilation) is recommended. In severe cases, the use of IV physostigmine may be considered.
Drug Interactions
Additive anticholinergic effect with MAOIs, TCAs, phenothiazines, antihistamines and disopyramide. Delayed gastric emptying causes delayed absorption of other drugs. May antagonise the GI effects of domperidone, cisapride and metoclopramide. May reduce absorption of ketoconazole and levodopa. May increase absorption of nitrofurantoin. May increase serum levels of digoxin. May reduce effects of haloperidol and sublingual tablets of nitrates. May antagonise effects of parasympathomimetics.
Action
Description: Propantheline bromide is a quarternary ammonium antimuscarinic with antisecretory and antispasmodic effects.
Duration: About 6 hr.
Pharmacokinetics:
Absorption: Incompletely absorbed.
Metabolism: Extensive metabolism in small intestines.
Excretion: Mainly in urine as metabolites and <10% excreted as unchanged drug.
Storage
Oral:
Adjunct in peptic ulcer,Gastrointestinal tract spasm: Store below 25°.
MIMS Class
Disclaimer: This information is independently developed by MIMS based on Propantheline from various references and is provided for your reference only. Therapeutic uses, prescribing information and product availability may vary between countries. Please refer to MIMS Product Monographs for specific and locally approved prescribing information. Although great effort has been made to ensure content accuracy, MIMS shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2020 MIMS. All rights reserved. Powered by MIMS.com
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