Digestive
Medicines for Bloating
A common feeling of a swollen, full or tight tummy, usually harmless and related to digestion — but persistent bloating should be checked.
Education and reference only. This explains which medicines are used and why, in plain language — it deliberately contains no doses and is not a substitute for advice from your doctor or pharmacist. Always discuss your own treatment with a qualified clinician, and check the BNF and the product labelling for prescribing detail.
Quick answer
What is Bloating?
Bloating is a very common feeling of having a swollen, full, or tight tummy, sometimes with visible swelling of the abdomen, wind, and rumbling. It is usually related to the digestive system and is most often harmless.
- How it is treated: Most bloating is managed with simple dietary and lifestyle measures.
- Self-care: Eating slowly, reducing fizzy drinks and gas-producing foods, staying active, keeping hydrated and eating enough fibre (to avoid constipation), identifying food triggers, and managing any irritable bowel syndrome all help most bloating.
- When to seek help: See a GP about persistent bloating (for example most days for three weeks or more), especially if new, or with a change in bowel habit, tummy or pelvic pain, feeling full quickly, unexplained weight loss, or bleeding — persistent, new bloating should be checked.
What it is
Bloating is a very common feeling of having a swollen, full, or tight tummy, sometimes with visible swelling of the abdomen, wind, and rumbling. It is usually related to the digestive system and is most often harmless. Common causes include swallowing air (for example eating quickly or fizzy drinks), certain foods that produce gas (such as beans, onions and some vegetables), constipation, food intolerances (such as lactose intolerance), irritable bowel syndrome (a very common cause of recurrent bloating), and, in women, hormonal changes around the menstrual cycle. Bloating that comes and goes, especially in relation to food or the cycle, is usually not a concern. However, persistent bloating — particularly when it is new, does not settle, or comes with other symptoms — should be assessed, as, less commonly, it can be a sign of an underlying condition. In particular, persistent bloating in women is one of the symptoms that can (uncommonly) be associated with ovarian cancer, which is why persistent, new bloating is worth checking.
How it is treated
Most bloating is managed with simple dietary and lifestyle measures. Helpful steps include eating slowly and not gulping air, reducing fizzy drinks and gas-producing foods, keeping active (which helps the gut move), staying hydrated and eating enough fibre to avoid constipation, and identifying any food triggers (a food and symptom diary helps, and a dietitian can advise, for example on managing irritable bowel syndrome or a food intolerance). Treating constipation, if present, often relieves bloating. Where bloating is part of irritable bowel syndrome, managing that condition helps. Importantly, persistent bloating — especially if it is new, ongoing (for example most days for three weeks or more), or comes with other symptoms such as a change in bowel habit, tummy or pelvic pain, feeling full quickly, unexplained weight loss, or bleeding — should be assessed by a doctor to identify any underlying cause. The reassuring message is that bloating is usually harmless and related to digestion, but persistent or new bloating with other symptoms should be checked.
For this condition, these medicines
Medicine classes used for Bloating
Each links to a full, dose-free guide — what it is, how it works, who can and cannot use it, side effects, interactions and FAQs.
Beyond medication
Lifestyle and self-care
Eating slowly, reducing fizzy drinks and gas-producing foods, staying active, keeping hydrated and eating enough fibre (to avoid constipation), identifying food triggers, and managing any irritable bowel syndrome all help most bloating.
When to get help
When to see a doctor
See a GP about persistent bloating (for example most days for three weeks or more), especially if new, or with a change in bowel habit, tummy or pelvic pain, feeling full quickly, unexplained weight loss, or bleeding — persistent, new bloating should be checked.
Not sure how urgent it is? It is always OK to call NHS 111 for advice, day or night.
Answers
Bloating: frequently asked questions
What causes bloating?
Usually harmless digestive causes — swallowing air, gas-producing foods, constipation, food intolerances, irritable bowel syndrome, and hormonal changes around the menstrual cycle. Bloating that comes and goes with food or the cycle is usually not a concern.
When should bloating be checked?
Persistent bloating — especially if new, ongoing (most days for three weeks or more), or with a change in bowel habit, pelvic pain, feeling full quickly, weight loss or bleeding — should be assessed, as it can occasionally signal an underlying condition, including (uncommonly) ovarian cancer in women.
Sources
Where this is drawn from
- NHS — Bloating
- NICE CG61 — Irritable bowel syndrome
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