Mebeverine Hydrochloride for Irritable Bowel Syndrome Management

Mechanism of Action and Efficacy

Mebeverine is an antispasmodic that has a direct inhibitory effect on intestinal smooth muscle, helping to relieve abdominal pain and spasms associated with IBS 1
Unlike anticholinergic antispasmodics, mebeverine has fewer systemic side effects like dry mouth 1
Meta-analyses show that mebeverine demonstrates global benefit in IBS treatment, although its specific effect on pain reduction may be less pronounced compared to anticholinergic agents 1

Antispasmodics like mebeverine are considered first-line pharmacological treatments for IBS, particularly for pain-predominant symptoms 1, 2
The British Society of Gastroenterology guidelines note that certain antispasmodics may be effective for global symptoms and abdominal pain in IBS, though the quality of evidence is rated as very low 2
Mebeverine has a better side effect profile than anticholinergic antispasmodics, which commonly cause dry mouth, visual disturbances, and dizziness 2

Regular exercise is strongly recommended for all IBS patients when using mebeverine as part of a comprehensive IBS management approach 2
Dietary modifications appropriate to the IBS subtype can be combined with mebeverine 2
Soluble fiber supplements can be used for constipation-predominant IBS alongside mebeverine 2
Loperamide can be used for diarrhea-predominant IBS if needed, in combination with mebeverine 2
For patients who do not respond adequately to mebeverine, second-line treatments may include tricyclic antidepressants, selective serotonin reuptake inhibitors, or more targeted therapies based on the predominant IBS subtype 2