Clinical data
Trade names Colofac, Duspamen and others
AHFS/ International Drug Names
Routes of
ATC code A03AA04 (WHO)
Legal status
Legal status
CAS Number 2753-45-9 YesY
PubChem (CID) 4031
ChemSpider 3891 YesY
KEGG D04868 YesY
ECHA InfoCard 100.018.546
Chemical and physical data
Formula C25H35NO5
Molar mass 429.6 g/mol
3D model (Jmol) Interactive image
Chirality Racemic mixture

Mebeverine is a drug whose major therapeutic role is in the treatment of irritable bowel syndrome (IBS) and the associated abdominal cramping. It works by relaxing the muscles in and around the gut. It is a musculotropic antispasmodic drug without anticholinergic side-effects. The drug is also indicated for treatment of gastrointestinal spasm secondary to organic disorder.

Mebeverine (Colofac) 135 mg, U.K.


Spastic functional disturbances of the colon:

Mechanism of action

Mebeverine is an antimuscarinic. It is also an inhibitor of calcium-depot replenishment. Musculotropic compounds act directly on the gut muscles at the cellular level to relax them. This relieves painful muscle spasms of the gut, without affecting its normal motility. Mebeverine is used to relieve symptoms of irritable bowel syndrome and related intestinal disorders that are the result of spasms in the intestinal muscles. These include colicky abdominal pain and cramps, diarrhoea alternating with constipation and flatulence (wind).

Adverse effects

Side effects may include:[1]

Since 1978, 21 cases of severe adverse reactions to mebeverine were reported in the Netherlands.[2] Most reactions consisted of urticaria or maculopapular rash, sometimes accompanied by fever, polyarthritis, thrombocytopenia or angioedema.

Very rarely, people taking this medicine may develop allergic reactions.[3]

Pregnancy and breastfeeding

Mebeverine passes into breast milk, but the amount is considered too small to be harmful to a nursing infant.[1]

Driving and using machines

Mebeverine is unlikely to affect the ability to operate machinery or to drive, yet not completely out of the question.[4][5]


It was first registered in 1965.[6]


Mebeverine is a generic drug and is available internationally under many brand names.[7]


  1. 1 2 Colofac Data Sheet (PDF)
  2. in 't Veld BA, van Puyenbroek E, Stricker BH (1997). Hypersensitivity reactions to use of mebeverine. pp. 1392–5. Ned Tijdschr Geneeskd. 1997 July 12;141(28):1392-5. Hypersensitivity reactions to use of mebeverine pubmed: 9380201
  3. Colofac Patient leaflet sheet
  6. Mebeverine page at druginfosys Page accessed Feb 1, 2015
  7. International page at for Mebeverine Page accessed Feb 1, 2015
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