Functional bloating

Chronic sensation of abdominal bloating or distension without measurable increase in girth and without identified organic cause. Diagnosed by the Rome IV criteria and classified as a functional GI disorder.

ICD-10 R141 drug

Also known as: Functional abdominal bloating, FAB

Drugs used for this condition

BSimeticoneAdd-on therapy · Drugs for functional bowel disorders. Antifoaming agentsIn functional bloating, simeticone may reduce symptom severity in short courses. The evidence base is limited to small RCTs; NICE and ACG mention the drug as a symptomatic option without first-line status. Effect is unpredictable: some patients report significant relief, others none.

How to read tiers A–F

Evidence tiers belong to the drug-indication pair, not to the drug as a whole: the same substance can be A for one condition and F for another.

AStrong evidence – first or second line in international guidelines
BRecommended in selected cases
CStudy data contradict each other
DBenefit not proven, no documented harm
FDocumented harm, or risk without benefit