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- Difficulty in breathing
- Swelling of the face, neck and throat
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Last updated on June 19, 2026.
Colofac is a medication used to relieve IBS symptoms.
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Colofac is a medicine used to treat the symptoms of irritable bowel syndrome (or ‘IBS’ for short). It’s a common condition that affects your digestive system, causing symptoms like cramps, diarrhoea, constipation and discomfort. [2] Although IBS is a widespread condition, there’s no cure. However, changing your diet and using medication can help to improve your symptoms.
Colofac contains the active ingredient mebeverine hydrochloride, which is a type of antispasmodic. IBS is usually associated with pain, discomfort and spasms in the digestive system. Colofac works by relieving these spasms and other symptoms, allowing you to feel more comfortable.
IBS is a condition that affects your lower gastrointestinal tract, including the small and large intestines. When your intestines spasm (squeeze or tighten), it can cause pain in your lower abdomen. Colofac’s active ingredient, mebeverine hydrochloride, is an antispasmodic. This means it relaxes the muscles in your intestines, which stops spasms from occurring. [1]
Colofac comes in 2 different doses: Colofac 135mg tablets and Colofac 200mg Modified-Release capsules.
Both contain the same active ingredient, mebeverine hydrochloride, but the 200mg version is a slow-release tablet. A slow-release tablet releases the drug gradually over a period of time rather than in one go.

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When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Both Colofac 200mg MR capsules and Colofac 135mg tablets should be taken 20 minutes before eating a meal, with a whole glass of water. Do not chew the tablets.
If you’re taking two tablets a day, take one before breakfast and the other before your evening meal. And for 3 times a day, take one before your breakfast, lunch and evening meal. Children under the age of 10 shouldn’t take Colofac, unless advised. [1]
Colofac usually starts to work around 1 hour after taking it.
Once you feel better, you can stop taking Colofac (but it’s better to ask our clinicians first before stopping). If your symptoms remain the same after 2 weeks have passed, contact our clinician for the next steps. [1]
If you forget to take a dose, take it when you remember. If it’s nearly time for your next dose, skip the missed dose. Do not take a double dose.
If you have taken more Colofac than required, talk to our clinicians or go to the A&E if you feel any side effects.

How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Colofac is not suitable for everyone. To make sure it’s safe for you there are some things you need to know.
Here’s all the official info on them. If anything is unclear, let our clinician know, and they can talk with you about it.
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
Last updated on Jun 19, 2026.
Our experts continually monitor new findings in health and medicine, and we update our articles when new info becomes available.
Why this page was updated on Jun 19, 2026
Current version (Jun 19, 2026)
Edited by: The Treated Content Team. Medically reviewed by: Ms Sanjeda Chowdhury, Superintendent Pharmacist + Independent PrescriberJul 11, 2023
Published by: The Treated Content Team. Medically reviewed by: Dr Alexandra Cristina Cowell, Writer & Clinical Content ReviewerHow we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
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Superintendent Pharmacist + Independent Prescriber
Sanjeda runs our pharmacy, based in Bolton. She works closely with our doctors and prescribers, ensuring that the treatments we recommend are safe, and that all medicines are dispensed correctly. Sanjeda is also an Independent Prescriber. Registered with GPhC (No. 2202465)
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