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Propantheline


General


Pronunciation

(proe PAN the leen)


Indications


Use: Labeled Indications

Peptic ulcer: Adjunctive therapy in the treatment of peptic ulcer


Contraindications


Glaucoma; obstructive disease of the gastrointestinal tract (eg, pyloroduodenal stenosis, achalasia, paralytic ileus); obstructive uropathy (eg, bladder-neck obstruction due to prostatic hypertrophy); intestinal atony of elderly or debilitated patients; severe ulcerative colitis or toxic megacolon complicating ulcerative colitis; unstable cardiovascular adjustment in acute hemorrhage; myasthenia gravis.


Dosing and Administration


Dosing: Adult

Peptic ulcer: Oral: 15 mg 3 times daily before meals or food and 30 mg at bedtime; adjust dosage according to patient response and tolerance.


Dosing: Geriatric

Refer to adult dosing; use with caution.


Dosing: Renal Impairment

There are no dosage adjustments provided in the manufacturer 's labeling; use with caution


Dosing: Hepatic Impairment

There are no dosage adjustments provided in the manufacturer 's labeling; use with caution


Administration

Administer 30 minutes before meals and at bedtime.


Dietary Considerations

Some products may contain lactose.


Storage

Store at 20 ‚ °C to 25 ‚ °C (68 ‚ °F to 77 ‚ °F).


Dosage Forms/Strengths


Dosage Forms

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Tablet, Oral, as bromide:

Generic: 15 mg


Drug Interactions

AbobotulinumtoxinA: Anticholinergic Agents may enhance the anticholinergic effect of AbobotulinumtoxinA. Monitor therapy

Acetylcholinesterase Inhibitors: May diminish the therapeutic effect of Anticholinergic Agents. Anticholinergic Agents may diminish the therapeutic effect of Acetylcholinesterase Inhibitors. Monitor therapy

Aclidinium: May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination

Analgesics (Opioid): Anticholinergic Agents may enhance the adverse/toxic effect of Analgesics (Opioid). Specifically, the risk for constipation and urinary retention may be increased with this combination. Monitor therapy

Anticholinergic Agents: May enhance the adverse/toxic effect of other Anticholinergic Agents. Monitor therapy

Cannabinoid-Containing Products: Anticholinergic Agents may enhance the tachycardic effect of Cannabinoid-Containing Products. Exceptions: Cannabidiol. Monitor therapy

Cimetropium: Anticholinergic Agents may enhance the anticholinergic effect of Cimetropium. Avoid combination

Eluxadoline: Anticholinergic Agents may enhance the constipating effect of Eluxadoline. Avoid combination

Gastrointestinal Agents (Prokinetic): Anticholinergic Agents may diminish the therapeutic effect of Gastrointestinal Agents (Prokinetic). Monitor therapy

Glucagon: Anticholinergic Agents may enhance the adverse/toxic effect of Glucagon. Specifically, the risk of gastrointestinal adverse effects may be increased. Avoid combination

Glycopyrrolate (Oral Inhalation): Anticholinergic Agents may enhance the anticholinergic effect of Glycopyrrolate (Oral Inhalation). Avoid combination

Ipratropium (Oral Inhalation): May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination

Itopride: Anticholinergic Agents may diminish the therapeutic effect of Itopride. Monitor therapy

Levosulpiride: Anticholinergic Agents may diminish the therapeutic effect of Levosulpiride. Avoid combination

Mianserin: May enhance the anticholinergic effect of Anticholinergic Agents. Monitor therapy

Mirabegron: Anticholinergic Agents may enhance the adverse/toxic effect of Mirabegron. Monitor therapy

OnabotulinumtoxinA: Anticholinergic Agents may enhance the anticholinergic effect of OnabotulinumtoxinA. Monitor therapy

Oxatomide: May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination

Potassium Chloride: Anticholinergic Agents may enhance the ulcerogenic effect of Potassium Chloride. Management: Patients on drugs with substantial anticholinergic effects should avoid using any solid oral dosage form of potassium chloride. Avoid combination

Pramlintide: May enhance the anticholinergic effect of Anticholinergic Agents. These effects are specific to the GI tract. Consider therapy modification

Ramosetron: Anticholinergic Agents may enhance the constipating effect of Ramosetron. Monitor therapy

RimabotulinumtoxinB: Anticholinergic Agents may enhance the anticholinergic effect of RimabotulinumtoxinB. Monitor therapy

Secretin: Anticholinergic Agents may diminish the therapeutic effect of Secretin. Management: Avoid using drugs with substantial anticholinergic effects in patients receiving secretin whenever possible. If such agents must be used in combination, monitor closely for a diminished response to secretin. Consider therapy modification

Thiazide and Thiazide-Like Diuretics: Anticholinergic Agents may increase the serum concentration of Thiazide and Thiazide-Like Diuretics. Monitor therapy

Tiotropium: Anticholinergic Agents may enhance the anticholinergic effect of Tiotropium. Avoid combination

Topiramate: Anticholinergic Agents may enhance the adverse/toxic effect of Topiramate. Monitor therapy

Umeclidinium: May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination


Adverse Reactions


Frequency not defined.

Cardiovascular: Palpitation, tachycardia

Central nervous system: Confusion, dizziness, drowsiness, headache, insomnia, nervousness

Endocrine & metabolic: Suppression of lactation

Gastrointestinal: Bloated feeling, constipation, loss of taste, nausea, vomiting, xerostomia

Genitourinary: Impotence, urinary hesitancy, urinary retention

Neuromuscular & skeletal: Weakness

Ocular: Blurred vision, cycloplegia, mydriasis, ocular tension increased

Miscellaneous: Allergic reactions, anaphylaxis, diaphoresis decreased


Warnings/Precautions


Concerns related to adverse effects:

- CNS effects: May cause drowsiness and/or blurred vision, which may impair physical or mental abilities; patients must be cautioned about performing tasks which require mental alertness (eg, operating machinery or driving).

- Diarrhea: May be a sign of incomplete intestinal obstruction; discontinue treatment if this occurs.

- Heat prostration: May occur in the presence of increased environmental temperature; use caution in hot weather and/or exercise.

Disease-related concerns:

- Cardiovascular disease: Use with caution in patients with coronary artery disease, tachyarrhythmias, heart failure, or hypertension.

- Hepatic impairment: Use with caution in patients with hepatic impairment.

- Hiatal hernia: Use with caution in patients with hiatal hernia with reflux esophagitis.

- Hyperthyroidism: Use with caution in patients with hyperthyroidism.

- Neuropathy: Use with caution in patients with autonomic neuropathy.

- Renal impairment: Use with caution in patients with renal impairment.

- Ulcerative colitis: Use with caution in patients with ulcerative colitis; large doses may suppress intestinal motility.

Concurrent drug therapy issues:

- Drug-drug interactions: Potentially significant interactions may exist, requiring dose or frequency adjustment, additional monitoring, and/or selection of alternative therapy. Consult drug interactions database for more detailed information.

Special populations:

- Elderly: Use with caution.


Pregnancy Risk Factor

C


Pregnancy Considerations

Animal reproduction studies have not been conducted.


Actions


Pharmacology

Competitively blocks the action of acetylcholine at postganglionic parasympathetic receptor sites and inhibits gastrointestinal motility


Metabolism

Hepatic via hydrolysis to inactive metabolites


Excretion

Urine (3%; ~70% as metabolites)


Time to Peak

Plasma: ~1 hour


Duration of Action

6 hours


Half-Life Elimination

Serum: ~1.6 hours


Patient and Family Education


Patient Education

- Discuss specific use of drug and side effects with patient as it relates to treatment. (HCAHPS: During this hospital stay, were you given any medicine that you had not taken before? Before giving you any new medicine, how often did hospital staff tell you what the medicine was for? How often did hospital staff describe possible side effects in a way you could understand?)

- Patient may experience fatigue, dizziness, headache, nausea, vomiting, dry mouth, loss of strength and energy, change in taste, anxiety, or insomnia. Have patient report immediately to prescriber muscle weakness, tachycardia, abnormal heartbeat, confusion, bloating, vision changes, sexual dysfunction, diarrhea, urinary retention, lack of sweat, or severe constipation (HCAHPS).

- Educate patient about signs of a significant reaction (eg, wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat). Note: This is not a comprehensive list of all side effects. Patient should consult prescriber for additional questions.

Intended Use and Disclaimer: Should not be printed and given to patients. This information is intended to serve as a concise initial reference for health care professionals to use when discussing medications with a patient. You must ultimately rely on your own discretion, experience, and judgment in diagnosing, treating, and advising patients.

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