Product image of Myotonine (Bethanechol Chloride) supplied by GNH India

Myotonine

Active Ingredient:
Bethanechol Chloride
Origin:
EU

Myotonine (Bethanechol Chloride)

Bethanechol Chloride, the active ingredient in Myotonine, is a muscarinic receptor agonist presented as an oral formulation for systemic use. It stimulates smooth muscle contraction in the urinary bladder and gastrointestinal tract, making it useful in managing postoperative urinary retention, neurogenic bladder dysfunction, and postoperative ileus in adult patients.

GNH India supplies Myotonine as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to EU GMP standards and provides reliable sourcing for bulk and finished‑product orders across multiple regions.

Manufacturer / TM Owner

Glenwood Gmbh

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Indications & Clinical Uses

Bethanechol Chloride (Myotonine) stimulates muscarinic receptors in the urinary and gastrointestinal tracts, promoting smooth‑muscle contraction.

  • Post‑operative urinary retention: facilitates bladder emptying by increasing detrusor muscle contractility.
  • Neurogenic bladder dysfunction: improves bladder voiding efficiency in patients with neurologic impairment.
  • Post‑operative ileus: enhances gastrointestinal motility to reduce bowel stasis after surgery.

How It Works

  • Bethanechol Chloride is a direct muscarinic receptor agonist that selectively binds to M3 receptors on smooth‑muscle cells of the bladder and gastrointestinal tract. Activation of these G‑protein‑coupled receptors triggers intracellular calcium release, leading to contraction of the detrusor muscle and intestinal smooth muscle, thereby increasing urinary outflow and promoting intestinal peristalsis without significant nicotinic activity.

Side Effects

Bethanechol Chloride may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

  • Abdominal cramping: discomfort due to increased GI motility.
  • Diarrhea: loose stools from enhanced intestinal activity.
  • Sweating: excess perspiration related to cholinergic stimulation.
  • Flushing: transient skin redness.
  • Nausea: feeling of queasiness.
  • Urinary urgency: sudden need to void.

Serious or Rare Side Effects

  • Bradycardia: markedly slowed heart rate requiring medical attention.
  • Severe hypotension: dangerous drop in blood pressure.
  • Bronchospasm: airway constriction that may cause breathing difficulty.
  • Allergic reaction: rash, itching, or swelling indicating hypersensitivity.

Precautions & Warnings

When prescribing Bethanechol Chloride, clinicians should consider several safety measures to minimize risk.

  • Assess cardiac function: avoid use in patients with known bradyarrhythmias or recent myocardial infarction.
  • Evaluate respiratory status: caution in individuals with asthma or chronic obstructive pulmonary disease.
  • Monitor fluid balance: dehydration may exacerbate hypotensive effects.
  • Review concomitant cholinergic drugs: combined use can amplify muscarinic effects.
  • Adjust for renal impairment: dose may need modification in severe renal dysfunction.
  • Store at ambient temperature: keep below 25 °C, in original packaging, protected from moisture.

Avoid Interactions

Bethanechol Chloride can interact with other medications that influence cholinergic pathways or cardiovascular function.

Major Interactions (Avoid)

  • Anticholinergic agents (e.g., atropine, scopolamine): may block therapeutic effect.
  • Beta‑blockers: additive bradycardia risk.
  • Calcium channel blockers: potential for enhanced hypotension.

Moderate Interactions (Monitor Closely)

  • Other muscarinic agonists (e.g., pilocarpine): may increase cholinergic side effects.
  • Diuretics: may worsen hypotensive response.
  • Opioids: possible additive constipation after discontinuation.

Frequently Asked Questions

Myotonine contains Bethanechol Chloride, which is prescribed to stimulate smooth‑muscle activity in the urinary bladder and gastrointestinal tract. It is used primarily for postoperative urinary retention, neurogenic bladder dysfunction, and postoperative ileus, helping patients regain normal bladder emptying and bowel motility after surgery or neurologic injury.

Bethanechol Chloride acts as a direct agonist at muscarinic M3 receptors located on smooth‑muscle cells of the bladder and gut. By activating these G‑protein‑coupled receptors, it raises intracellular calcium levels, causing contraction of the detrusor muscle and intestinal smooth muscle, which enhances urinary flow and promotes intestinal peristalsis.

The dosage of Myotonine is individualized by the prescribing clinician based on the patient’s condition, age, renal function, and response to therapy. The prescriber determines the appropriate strength, frequency, and duration, and adjustments are made according to therapeutic effect and tolerability.

Safety data for Bethanechol Chloride in pregnancy and lactation are limited. The drug should only be used if the potential benefit justifies any possible risk to the fetus or infant. Healthcare providers should evaluate each case carefully and discuss potential risks with the patient.

To order Myotonine, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements) and the necessary import documentation.

Alternative agents for bladder stimulation include anticholinergic antagonists and catheterisation, while gastrointestinal motility can be supported by agents such as metoclopramide. Bethanechol’s advantage lies in its direct muscarinic agonism, which specifically enhances smooth‑muscle contraction without significant central nervous system effects, but it may have a higher incidence of cholinergic side effects compared with some alternatives.

Myotonine should be stored at ambient temperature, preferably below 25 °C. Keep the product in its original packaging, protect it from moisture and direct sunlight, and ensure the container is tightly closed to maintain stability throughout its shelf life.

Myotonine is administered orally as a tablet or liquid preparation, as directed by the prescriber. It is taken with or without food, according to the dosing schedule provided, and patients should follow the exact instructions on timing and any required fluid intake.

The most serious adverse reactions include bradycardia, severe hypotension, bronchospasm, and allergic responses such as rash or swelling. Patients should be instructed to seek immediate medical attention if they experience rapid heart rate slowing, faintness, difficulty breathing, or signs of an allergic reaction.

Myotonine is contraindicated in patients with known hypersensitivity to Bethanechol or other muscarinic agonists, severe bradyarrhythmias, recent myocardial infarction, uncontrolled asthma, or significant obstructive pulmonary disease. Caution is also advised in individuals with renal failure, as dose adjustment may be required.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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