Buy Colofac
Colofac

0.82
Relieves abdominal pain and cramps associated with Irritable Bowel Syndrome (IBS).


Ingredient
Availability
In Stock
Delivery
Airmail (14-21 days) | EMS trackable (5-9 days)
Product is shipped in a fully discreet envelope with no content disclosure, including all required documentation inside

Product Sheet

Alternative/Local Brand
Colofac
Active Ingredient(s)
Mebeverine
Primary Category
Digestive Relief, Muscle Spasm Relief
Therapeutic Class
Antispasmodics, Synthetic anticholinergics, Esters with tertiary amino group
Pharmacological Class
Antispasmodic
Indications
Irritable Bowel Syndrome (IBS), Stomach cramps, Bloating, Chronic irritable colon
Contraindications
Paralytic ileus, Hypersensitivity to mebeverine
Minor Side Effects
Indigestion, Heartburn, Dizziness
Moderate Side Effects
Mild skin rash, Itching
Serious Side Effects
Angioedema, Severe allergic reaction, Swelling of the face or lips
Dosage Forms
Tablet, Capsule
Administration Route
Oral
Mechanism of Action
It works directly on the smooth muscles of the digestive tract, causing them to relax. This relieves pain, cramps, and spasms associated with IBS without affecting normal gut movement.
Prescription Status
OTC
Manufacturer
Mylan
Patient Summary
Relieves abdominal pain and cramps associated with Irritable Bowel Syndrome (IBS).
Onset Time
20-60 minutes
Duration
6-8 hours
Storage Instructions
Store in a dry place below 25°C.
Drug Interactions
No significant drug interactions commonly reported
Age Restrictions
Not recommended for children under 10.
Pregnancy Use
Not recommended during pregnancy or breastfeeding.
Alternative Drugs
Buscopan, Peppermint oil, Alverine

What is Colofac?

Colofac contains mebeverine as its active component. It is classified under Digestive Health as a spasm-relieving (antispasmodic) medication. The product is supplied as a pill in a single strength of 135 mg. In Hong Kong, Colofac is a prescription-only (Rx) drug regulated by the Pharmacy and Poisons Board of the Department of Health. It is marketed for the symptomatic relief of abdominal discomfort associated with certain functional bowel disorders.

How Colofac Works in the Body

Mebeverine is a direct-acting smooth-muscle relaxant. It interferes with the influx of calcium ions into gastrointestinal smooth-muscle cells, thereby reducing the intensity and frequency of muscle spasms. Because it acts locally on the gut wall, it does not significantly affect central nervous system activity. The result is a reduction in cramp-like abdominal pain and a normalization of bowel movement patterns. Onset of symptom relief is usually observed within 30 minutes after ingestion, with peak effect reached after about 2 hours; the therapeutic effect can last for several hours, which is why the medication is often taken multiple times per day.

Conditions Treated by Colofac

Colofac (mebeverine) is approved in Hong Kong for the relief of abdominal pain and cramping associated with irritable bowel syndrome (IBS). It may be prescribed for adult patients who experience intermittent or persistent IBS-related discomfort, provided that other causes of abdominal pain have been excluded. The medication is not indicated for structural gastrointestinal diseases such as inflammatory bowel disease, bowel obstruction, or ulcerative conditions.

Patient Suitability and Contraindications

Who Should Use Colofac?

  • Adults diagnosed with IBS who experience abdominal cramps or spasms.
  • Patients whose clinicians have determined that a smooth-muscle relaxant is appropriate after evaluating other treatment options.

Absolute Contraindications

  • Known hypersensitivity to mebeverine or any of the pill’s inactive ingredients.
  • Presence of a mechanical bowel obstruction or perforated diverticulitis.
  • Acute inflammatory bowel disease flare-ups.

Relative Contraindications

  • Severe hepatic impairment (dose adjustment may be required).
  • Pregnancy or lactation - use only if the potential benefit outweighs the potential risk; discuss with a healthcare professional.
  • Concurrent use of other antispasmodic or anticholinergic agents (increased risk of additive gastrointestinal effects).

Safety Profile: Side Effects and Interactions

Common Side Effects

  • Mild nausea or gastrointestinal discomfort.
  • Headache.
  • Dizziness or light-headedness.
  • Dry mouth.

These reactions are usually transient and resolve without medical intervention. If they persist or worsen, patients should seek advice from a healthcare professional.

Serious Adverse Events

  • Severe allergic reactions (rash, itching, swelling, or difficulty breathing).
  • Persistent faintness or syncope.
  • Signs of hepatic dysfunction (jaundice, dark urine) in patients with known liver disease.

Any of these symptoms warrant immediate medical evaluation.

Drug Interactions

  • Major: No well-documented major pharmacokinetic interactions have been identified for mebeverine, but caution is advised when combined with other antispasmodics, as additive effects on gut motility may occur.
  • Moderate: Concomitant use of strong anticholinergic drugs (e.g., certain antihistamines, tricyclic antidepressants) may increase the risk of dry mouth and constipation.
  • Enzyme-related: Mebeverine is not a significant substrate or inhibitor of cytochrome P450 enzymes, so interactions via CYP pathways are unlikely.

Patients should always disclose their full medication list, including over-the-counter products and herbal supplements, before starting Colofac.

Food and Lifestyle Interactions

  • The pill can be taken with or without food; however, ingesting it with a small amount of food may reduce occasional stomach upset.
  • Alcohol does not have a direct interaction but excessive intake may exacerbate gastrointestinal irritation.
  • No known impairment of driving or use of machinery; nevertheless, dizziness reported by some patients should be considered before operating vehicles.

How to Take Colofac

  • Standard dosing: The typical regimen for adults is 135 mg three times daily (approximately every 6-8 hours). The exact schedule should be determined by the prescribing clinician.
  • Special populations:
  • Renal impairment: No dosage adjustment is usually required, but clinicians may monitor for accumulation in severe cases.
  • Hepatic impairment: Start with a reduced dose (e.g., 135 mg twice daily) and titrate based on response and tolerability.
  • Administration: Swallow the pill whole with a glass of water. Do not crush, chew, or split the tablet unless specifically instructed.
  • Missed dose: If a dose is forgotten, take it as soon as remembered unless it is near the time of the next scheduled dose; do not double up.
  • Overdose: Symptoms may include severe nausea, vomiting, dizziness, and excessive sedation. Seek emergency medical care; treatment is primarily supportive.
  • Discontinuation: The medication can generally be stopped abruptly, but patients experiencing persistent symptoms may be advised to taper the dose under medical supervision to monitor for rebound cramps.

Monitoring and Follow-Up

Routine laboratory monitoring is not required for most patients taking mebeverine. However, clinicians may:

  • Assess symptom improvement after 2-4 weeks of therapy.
  • Re-evaluate liver function tests in patients with known hepatic disease.
  • Review the medication list periodically to identify any new potential drug interactions.

Storage and Handling

  • Store Colofac tablets at room temperature (15 °C-30 °C), protected from moisture and direct sunlight.
  • Keep the container tightly closed and out of reach of children.
  • Do not use the medication beyond the expiry date printed on the package.
  • Dispose of unused tablets according to local pharmacy-take-back programs or as directed by a pharmacist.

Medication-Specific Glossary

Antispasmodic
A drug that relaxes smooth-muscle spasms, commonly used to relieve abdominal cramping.
Smooth Muscle
Involuntary muscle found in the walls of hollow organs (e.g., intestines) that contracts rhythmically to move contents.
Irritable Bowel Syndrome (IBS)
A functional gastrointestinal disorder characterized by abdominal pain, altered bowel habits, and bloating without an identifiable organic cause.

Medical Disclaimer

This article provides educational information about Colofac and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.

Colofac FAQ

Can I take Colofac on an empty stomach?

Colofac may be taken with or without food. Some patients find that a small amount of food reduces mild stomach upset, but the medication’s absorption is not significantly affected by meals.

What distinguishes Colofac from other IBS treatments?

Colofac (mebeverine) works by directly relaxing gastrointestinal smooth muscle, whereas other IBS options may target serotonin receptors, gut motility, or pain pathways. Its mechanism is focused on reducing spasms without strong systemic effects.

Is it safe to use Colofac while pregnant?

Mebeverine is classified as a pregnancy-category B medication in many jurisdictions, indicating no proven risk in animal studies but limited human data. It should only be used during pregnancy if the potential benefit outweighs the risk, after discussion with a healthcare professional.

How long will it take to feel relief after the first dose?

Most patients notice a reduction in abdominal cramping within 30 minutes to 2 hours after the initial dose, though full therapeutic benefit may require several days of consistent dosing.

Can I travel internationally with Colofac?

Yes, but keep the medication in its original packaging with the prescription label attached. Carry a copy of the prescription or a doctor’s note, as some countries may request documentation for prescription drugs at customs.

Do I need to avoid any foods while on Colofac?

There are no specific food restrictions. However, limiting caffeine, spicy foods, and large fatty meals may help reduce overall IBS symptoms.

What should I do if I experience severe dizziness?

Severe dizziness may indicate an adverse reaction. Stop taking the medication and seek immediate medical attention, especially if the dizziness is accompanied by fainting or vision changes.

Are there any over-the-counter alternatives to Colofac?

OTC antispasmodics such as peppermint oil capsules are sometimes used for IBS symptoms, but they have different efficacy profiles. Consult a pharmacist or physician before substituting any medication.

How can I tell if my medication has expired?

The expiry date is printed on the bottle label. Do not use tablets past this date, as potency and safety cannot be guaranteed.

Is Colofac covered by Hong Kong’s public health insurance?

Colofac is a prescription medication; coverage depends on the specific public or private health plan. Patients should verify reimbursement details with their insurer or the Hospital Authority.

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