Colpermin are an antispasmodic which are used to relieve the spasms and cramps that occur in the large bowel in Irritable Bowel Syndrome (IBS)
Colpermin capsules contain peppermint oil as their active ingredient. The capsules have a special coating, called an enteric coat, that delays the opening of the capsules until after they have passed through the stomach and start of the small intestine.
Once the capsule reaches the lower small intestine and start of the large intestine it slowly releases the peppermint oil as it passes through the bowel.
The peppermint oil acts directly on the smooth muscle in the bowel wall, causing it to relax. By relaxing the gut, painful spasms and pressure in the bowel are reduced
One capsule should be taken three times a day. The capsules should not be taken immediately after eating. If the pain and discomfort is more severe the dose can be increased to a maximum of two capsules three times a day.
Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.
- Irritation around the anus
- Allergic reaction to menthol (rare).
The side effects listed above may not include all of the side effects reported by the drug's manufacturer.
The patient information leaflet (PIL) is a leaflet containing specific information about medical conditions, doses and side effects. You can download a copy of the PIL here:
Patient Info Leaflet