Mebeverine hydrochloride
Brand names: Colofac
Mebeverine hydrochloride is an antispasmodic used to relieve the abdominal pain and cramping of irritable bowel syndrome and related gastrointestinal spasm.
Adult dose
Dose adjustments
No posology studies have been performed in patients with renal and/or hepatic impairment; no specific risk could be identified from available post-marketing data and no dosage adjustment is deemed necessary.
Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.
Contraindications
- Hypersensitivity to the active substance or to any of the excipients
Side effects
- Hypersensitivity, including anaphylactic reactions (frequency not known — spontaneous post-marketing reports)
- Urticaria
- Angioedema
- Face oedema
- Exanthema (allergic reactions are mainly, but not exclusively, limited to the skin)
Interactions
- No interaction studies have been performed except with alcohol — in vitro and in vivo animal studies demonstrated the absence of any interaction between mebeverine hydrochloride and ethanol
Clinical monograph
How it works
It is a direct-acting smooth muscle relaxant that reduces intestinal spasm by acting locally on gut musculature, without the antimuscarinic effects typical of other antispasmodics.
Prescribing in practice
- It is contraindicated in paralytic ileus, where reducing gut motility could be harmful, and should not be relied upon if symptoms suggest a more serious bowel disorder.
- It is generally well tolerated; rare hypersensitivity reactions including rash and angioedema have been reported.
- Modified-release preparations should be swallowed whole and are typically taken before meals.
Monitoring
No specific laboratory monitoring is required; review symptom control and reconsider the diagnosis if there is no improvement or if alarm features develop.
Counselling the patient
- Take the dose shortly before meals as directed, swallowing modified-release capsules whole.
- Seek review if your pain changes, worsens, or you notice bleeding or unexplained weight loss.
Evidence & guidelines
Antispasmodics such as mebeverine are recommended by NICE as an option for managing abdominal pain and spasm in irritable bowel syndrome.
Reference: NICE CG61; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).
Related
Curated clinical cross-links plus same-class fallbacks.
- Lower Gastrointestinal Bleed · BSG 2019; NICE NG141
- Variceal Upper GI Bleed · BSG 2015; Baveno VII (2022)
- Spontaneous Bacterial Peritonitis (SBP) · BSG / EASL 2018
- Hepatorenal Syndrome · EASL 2018; ICA 2015
- Hepatic Encephalopathy · EASL 2014; West Haven criteria
- Clostridioides difficile Colitis · NICE NG199 (2021); IDSA/SHEA 2021