Medically reviewed by Drugs.com. Last updated on Apr 22, 2020.
(meth skoe POL a meen)
- Methscopolamine Bromide, Pamine, Pamine Forte
Excipient information presented when available (limited, particularly for generics); consult specific product labeling.
Tablet, Oral, as bromide:
Generic: 2.5 mg, 5 mg
- Anticholinergic Agent
Methscopolamine is a quaternary ammonium derivative of scopolamine that exerts anticholinergic effects, which include reducing the volume and total acid content of gastric secretion, inhibiting gastrointestinal motility and salivary secretion, dilation of the pupil, and inhibition of accommodation that results in blurring of vision.
Poorly and unreliably absorbed
Bile and urine; feces (as unabsorbed drug)
Onset of Action
Duration of Action
4 to 6 hours
Use: Labeled Indications
Peptic ulcer (adjunctive): Adjunctive therapy for the treatment of peptic ulcer
Limitations of use: Has not been shown to be effective in contributing to the healing of peptic ulcer, decreasing the rate of recurrence, or preventing complications
Hypersensitivity to methscopolamine, any component of the formulation, or related drugs; glaucoma; obstructive uropathy (eg, bladder neck obstruction due to prostatic hypertrophy); obstructive disease of the GI tract (eg, pyloroduodenal stenosis); paralytic ileus; intestinal atony of elderly or debilitated patients; unstable cardiovascular status in acute hemorrhage; severe ulcerative colitis; toxic megacolon complicating ulcerative colitis; myasthenia gravis
Peptic ulcer (adjunctive): Oral: Initial: 2.5 mg 30 minutes before meals and 2.5 to 5 mg at bedtime; for severe symptoms demanding prompt relief (abdominal pain or cramping), may initiate with 5 mg 30 minutes before meals and 5 mg at bedtime; adjust dose (increase or decrease) to patient response (30 mg/day has been tolerated in some patients).
Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.
Avoid use (Beers Criteria [AGS 2019]).
Oral: Administer 30 minutes before meals and at bedtime.
Take 30 minutes before meals and at bedtime.
Store at 15°C to 30° C (59° F to 86° F).
Acetylcholinesterase Inhibitors: Anticholinergic Agents may diminish the therapeutic effect of Acetylcholinesterase Inhibitors. Acetylcholinesterase Inhibitors may diminish the therapeutic effect of Anticholinergic Agents. Monitor therapy
Aclidinium: May enhance the anticholinergic effect of Anticholinergic Agents. Avoid combination
Amantadine: May enhance the anticholinergic effect of Anticholinergic Agents. Monitor therapy
Anticholinergic Agents: May enhance the adverse/toxic effect of other Anticholinergic Agents. Monitor therapy
Botulinum Toxin-Containing Products: May enhance the anticholinergic effect of Anticholinergic Agents. Monitor therapy
Cannabinoid-Containing Products: Anticholinergic Agents may enhance the tachycardic effect of Cannabinoid-Containing Products. Exceptions: Cannabidiol. Monitor therapy
Chloral Betaine: May enhance the adverse/toxic effect of Anticholinergic Agents. Monitor therapy
Cimetropium: Anticholinergic Agents may enhance the anticholinergic effect of Cimetropium. Avoid combination
CloZAPine: Anticholinergic Agents may enhance the constipating effect of CloZAPine. Management: Consider alternatives to this combination whenever possible. If combined, monitor closely for signs and symptoms of gastrointestinal hypomotility and consider prophylactic laxative treatment. Consider therapy modification
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. Monitor therapy
Glycopyrrolate (Oral Inhalation): Anticholinergic Agents may enhance the anticholinergic effect of Glycopyrrolate (Oral Inhalation). Avoid combination
Glycopyrronium (Topical): May enhance the anticholinergic effect of Anticholinergic Agents. 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
Nitroglycerin: Anticholinergic Agents may decrease the absorption of Nitroglycerin. Specifically, anticholinergic agents may decrease the dissolution of sublingual nitroglycerin tablets, possibly impairing or slowing nitroglycerin absorption. Monitor therapy
Opioid Agonists: Anticholinergic Agents may enhance the adverse/toxic effect of Opioid Agonists. Specifically, the risk for constipation and urinary retention may be increased with this combination. 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
Potassium Citrate: Anticholinergic Agents may enhance the ulcerogenic effect of Potassium Citrate. Avoid combination
Pramlintide: May enhance the anticholinergic effect of Anticholinergic Agents. These effects are specific to the GI tract. Avoid combination
Ramosetron: Anticholinergic Agents may enhance the constipating effect of Ramosetron. Monitor therapy
Revefenacin: Anticholinergic Agents may enhance the anticholinergic effect of Revefenacin. Avoid combination
Secretin: Anticholinergic Agents may diminish the therapeutic effect of Secretin. Management: Avoid concomitant use of anticholinergic agents and secretin. Discontinue anticholinergic agents at least 5 half-lives prior to administration of 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
Frequency not defined.
Cardiovascular: Palpitation, tachycardia
Central nervous system: Headache, insomnia, flushing, nervousness, drowsiness, dizziness, confusion, fever, CNS stimulation may be produced with large doses
Dermatologic: Dry skin, urticaria
Endocrine & metabolic: Lactation suppressed
Gastrointestinal: Constipation, xerostomia, dry throat, dysphagia, nausea, vomiting, loss of taste
Genitourinary: Impotence, urinary hesitancy, urinary retention
Neuromuscular & skeletal: Weakness
Ocular: Blurred vision, cycloplegia, ocular tension increased, pupil dilation
Respiratory: Dry nose
Miscellaneous: Allergic reaction, diaphoresis decreased, hypersensitivity reactions, anaphylaxis
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, especially in patients with ileostomy or colostomy; discontinue treatment if this occurs.
• Heat prostration: May occur in the presence of high environmental temperature; use caution in hot weather and/or exercise.
• Cardiovascular disease: Use with caution in patients with coronary artery disease, tachyarrhythmias, tachycardia, heart failure or hypertension.
• Hepatic impairment: Use with caution in patients with hepatic impairment.
• Hyperthyroidism: Use with caution in patients with hyperthyroidism.
• Neuropathy: Use with caution in patients with autonomic neuropathy.
• Prostatic hyperplasia: Use with caution in patients with prostatic hyperplasia.
• 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 leading to a paralytic ileus); may precipitate/aggravate toxic megacolon.
• Elderly: Use with caution in the elderly; increased risk for anticholinergic effects, confusion, and hallucinations.
Follow by upper GI contrast radiology or endoscopy to ensure healing
Pregnancy Risk Factor
Animal reproduction studies have not been conducted. Methscopolamine is a derivative of scopolamine. Scopolamine is reported to cross the placenta; fetal toxicity noted in case reports.
What is this drug used for?
• It is used to treat GI (gastrointestinal) ulcers.
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
• Feeling, dizzy, sleepy, tired, or weak
• Blurred vision
• Dry mouth
• Change in taste
• Upset stomach
• Throwing up
• Trouble sleeping
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
• Fast heartbeat
• Abnormal heartbeat
• Sexual dysfunction
• Muscle weakness
• Severe constipation
• Severe stomach pain
• Trouble urinating
• Lack of sweat
• Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
Note: This is not a comprehensive list of all side effects. Talk to your doctor if you have questions.
Consumer Information Use and Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a limited summary of general information about the medicine's uses from the patient education leaflet and is not intended to be comprehensive. This limited summary does NOT include all information available about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not intended to provide medical advice, diagnosis or treatment and does not replace information you receive from the healthcare provider. For a more detailed summary of information about the risks and benefits of using this medicine, please speak with your healthcare provider and review the entire patient education leaflet.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about methscopolamine
- Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Images
- Drug Interactions
- Pricing & Coupons
- En Español
- 12 Reviews
- Drug class: anticholinergics/antispasmodics
Other brands: Pamine