Colofac (Mebeverine Hydrochloride) – Uses, Dosage, Side Effects & Complete Guide


Introduction

Colofac is a well-known medicine containing Mebeverine Hydrochloride, a musculotropic antispasmodic drug that acts directly on the smooth muscles of the gastrointestinal tract. Unlike many antispasmodics, Colofac relieves spasms without disturbing normal gut motility — meaning it eases pain without slowing or over-relaxing the intestines.

The exact mechanism of Colofac is not completely understood, but research suggests that it:

  • Decreases ion channel permeability in muscle cells

  • Blocks noradrenaline reuptake

  • Has a mild local anesthetic effect on the gut lining

  • Alters water absorption in the intestines

  • Exhibits weak antimuscarinic and phosphodiesterase inhibitory effects

Through these combined actions, Colofac effectively relieves painful cramps and normalizes bowel movements without causing hypotonia (permanent relaxation of intestinal muscles). Another plus point — it does not cause the systemic side effects seen in many typical anticholinergic medicines.

Therapeutic Benefits

Colofac is widely used in conditions involving irritable or overactive gut muscles, such as:

  1. Irritable Bowel Syndrome (IBS) – reduces pain, cramps, bloating, and irregular stools

  2. Gastrointestinal spasms due to stress or food intolerance

  3. Post-infectious bowel disturbances after gastroenteritis

  4. Functional bowel disorders without a clear structural cause

  5. Spasms secondary to organic diseases such as diverticulitis

Dosage & Administration

  • Adults and children over 10 years: 135 mg tablet three times daily, preferably 20 minutes before meals

  • Children 3–10 years: Not recommended due to the high dose of Mebeverine Hydrochloride

  • Minimum treatment duration: 2–4 weeks

  • If significant improvement is seen, treatment can be extended to 6–8 weeks under medical supervision

How to take:
Swallow the tablet whole with water; do not crush or chew. Taking it before meals helps prevent post-meal cramps.

Mechanism of Action in Detail

Colofac targets smooth muscles lining the gut. In IBS and similar disorders, these muscles often contract excessively or at the wrong time, leading to pain, bloating, and diarrhea/constipation. By directly relaxing these muscles without slowing normal movement, Colofac ensures pain relief while maintaining healthy digestion.

Side Effects

Colofac is generally well-tolerated, but some patients may experience:

  • Skin rash or itching

  • Mild allergic reactions (rare)

  • Dizziness or mild headache (very rare)

Notably: Unlike other gut relaxants, Colofac does not cause dry mouth, blurred vision, or constipation typically seen with strong anticholinergics.

Precautions & Warnings

  • Not recommended for children under 3 years

  • Pregnant and breastfeeding women should consult a doctor before use

  • Avoid in case of known allergy to Mebeverine

  • Not a cure for IBS — only provides symptom relief

  • If symptoms worsen or new symptoms appear (blood in stool, severe vomiting), seek medical help immediately

Drug Interactions

Colofac generally has a low interaction profile but may require caution with:

  • Strong CNS depressants

  • Other antispasmodics

  • Medicines affecting gut motility

Colofac in Urdu (مختصر تعارف)

کولوفیک ایک دوا ہے جو آنتوں کے پٹھوں کو آرام دیتی ہے اور آنتوں کے معمول کے عمل کو متاثر نہیں کرتی۔ یہ عام طور پر آنتوں میں درد، اینٹھن، اور آئی بی ایس کے علاج میں استعمال ہوتی ہے۔ اس کا استعمال ڈاکٹر کے مشورے سے کرنا چاہیے۔

Why Choose Colofac?

  • Fast relief from abdominal cramps

  • Maintains normal digestion

  • Minimal side effects

  • Well-researched safety profile

Storage

  • Keep below 30°C, away from moisture

  • Store out of reach of children

  • Do not use after expiry date


Location: Pakistan

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