Product image of Immex (Loperamide Hydrochloride) supplied by GNH India

Immex

Active Ingredient:
Loperamide Hydrochloride
Origin:
EU

Immex (Loperamide Hydrochloride)

Loperamide Hydrochloride, the active ingredient in Immex, is a peripheral opioid agonist presented as an oral dosage form for oral use. It is employed to reduce intestinal motility and fluid secretion, helping manage diarrhea in adults.

GNH India supplies Immex as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides reliable sourcing for global healthcare providers. Immex is manufactured under EU GMP guidelines and distributed through GNH India's regulated supply chain.

Manufacturer / TM Owner

Alvogen Ehf

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Indications & Clinical Uses

Loperamide Hydrochloride is used to treat diarrheal disorders by slowing intestinal transit.

  • Acute nonspecific diarrhea: reduces stool frequency and improves consistency.
  • Chronic diarrhea: provides symptomatic relief by decreasing bowel movements.
  • Irritable bowel syndrome with diarrhea (IBS‑D): alleviates diarrhea‑predominant symptoms and improves quality of life.

How It Works

  • Loperamide Hydrochloride acts as a peripheral μ‑opioid receptor agonist in the myenteric plexus of the gastrointestinal tract. By binding to these receptors it inhibits acetylcholine and prostaglandin release, leading to decreased smooth‑muscle activity and reduced peristalsis. The drug also enhances absorption of water and electrolytes, thereby lowering intestinal fluid secretion without crossing the blood‑brain barrier, which limits central opioid effects.

Side Effects

Loperamide Hydrochloride may cause a range of adverse reactions, most of which are mild and reversible.

Common Side Effects

  • Constipation
  • Abdominal cramps
  • Nausea
  • Dizziness
  • Dry mouth
  • Flatulence

Serious or Rare Side Effects

  • Severe constipation or intestinal obstruction
  • Toxic megacolon
  • Allergic reactions such as rash, itching, or swelling
  • Cardiac arrhythmias, including QT prolongation
  • Ileus
  • Severe abdominal pain

Precautions & Warnings

When prescribing Loperamide Hydrochloride, clinicians should consider several safety measures to minimize risk.

  • Assess dehydration: ensure patient is adequately rehydrated before use.
  • Avoid infectious diarrhea: do not use in cases of bacterial enteritis or Clostridioides difficile infection.
  • Do not exceed recommended dose: follow prescriber instructions to prevent toxicity.
  • Use with caution in hepatic impairment: reduced metabolism may increase systemic exposure.
  • Avoid in children under 2 years: safety not established.
  • Store at room temperature: keep in original container, protect from moisture and light.

Avoid Interactions

Loperamide Hydrochloride can interact with other medicines, altering its efficacy or safety profile.

Major Interactions (Avoid)

  • CYP3A4 inhibitors (e.g., ketoconazole, erythromycin): increase plasma levels and risk of cardiac toxicity.
  • CYP2C8 inhibitors (e.g., gemfibrozil): raise systemic exposure and potential adverse effects.
  • Other opioid agonists (e.g., codeine, morphine): additive central opioid effects may occur.

Moderate Interactions (Monitor Closely)

  • Anticholinergic agents (e.g., diphenhydramine): may enhance constipation.
  • Other antidiarrheal agents (e.g., bismuth subsalicylate): risk of excessive slowing of gut motility.
  • Drugs that prolong QT interval (e.g., macrolide antibiotics): may increase risk of arrhythmia when combined.

Frequently Asked Questions

Immex contains Loperamide Hydrochloride and is indicated for the symptomatic treatment of acute nonspecific diarrhea, chronic diarrhea, and irritable bowel syndrome with diarrhea (IBS‑D). It works by slowing intestinal transit, which helps reduce stool frequency and improve stool consistency.

Loperamide Hydrochloride acts as a peripheral μ‑opioid receptor agonist in the gut. By activating these receptors it inhibits the release of acetylcholine and prostaglandins, decreasing smooth‑muscle activity and peristalsis. The result is reduced intestinal motility and increased absorption of water and electrolytes, leading to firmer stools.

The appropriate dose of Immex is determined by the prescribing healthcare professional based on the individual’s condition, age, and response to therapy. Patients should follow the prescriber’s instructions and the product labeling, and should not adjust the dose without medical guidance.

Safety data for Loperamide Hydrochloride in pregnancy and lactation are limited. It should only be used if the potential benefit justifies any possible risk to the fetus or infant. Women who are pregnant, planning to become pregnant, or breastfeeding should discuss use with their healthcare provider.

To request Immex, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India supplies hospitals, pharmacies and procurement teams worldwide. After the enquiry, the sales team will verify trade or institutional credentials, then provide pricing, availability, shipping details and any required import documentation.

The most common alternative to Loperamide is diphenoxylate combined with atropine. Both reduce intestinal motility, but diphenoxylate has central opioid activity that can cause sedation, whereas Loperamide remains largely peripheral, offering a lower risk of central opioid effects. Choice depends on clinical judgment, patient tolerance and regulatory considerations.

Immex should be stored at room temperature, below 25 °C, in its original packaging to protect it from moisture and light. Keep the product out of reach of children and avoid storing it in humid or excessively hot environments to maintain its stability.

Immex is taken orally. The tablet should be swallowed whole with a glass of water. It may be taken with or without food, but patients should follow the dosing schedule prescribed by their healthcare professional.

Serious adverse events include severe constipation or intestinal obstruction, toxic megacolon, allergic reactions such as rash or swelling, and cardiac arrhythmias like QT‑interval prolongation. Patients should seek immediate medical attention if they experience abdominal pain, vomiting, faintness, or signs of an allergic reaction.

Immex should not be used in children younger than 2 years, in patients with known hypersensitivity to loperamide, or in individuals with bacterial enteritis, colitis caused by Clostridioides difficile, or acute dysentery. Caution is also advised for patients with severe hepatic impairment or those taking interacting medications.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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