Digestive
Medicines for Inflammatory bowel disease (IBD)
A group of long-term conditions — mainly Crohn’s disease and ulcerative colitis — in which the immune system causes inflammation of the gut, managed by settling flares and then keeping the disease in remission.
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 Inflammatory bowel disease (IBD)?
Inflammatory bowel disease (IBD) is an umbrella term for long-term conditions in which the gut becomes inflamed because of an overactive immune response. The two main types are ulcerative colitis, which affects the lining of the large bowel (colon and rectum), and Crohn’s disease, which can affect any part of the digestive tract and goes deeper into the bowel wall.
- How it is treated: Care has two clear goals: bringing an active flare under control (inducing remission), and then keeping the disease quiet over the long term (maintaining remission).
- Self-care: Stopping smoking (especially important in Crohn’s disease), eating well and addressing deficiencies such as iron, staying up to date with recommended vaccinations and not abruptly stopping treatment when feeling well all help keep IBD in remission and reduce complications.
- When to seek help: Seek urgent medical help if you have severe or persistent tummy pain, a lot of blood in your stools, ongoing vomiting, a high fever, or signs of dehydration, as a severe flare can need hospital care.
What it is
Inflammatory bowel disease (IBD) is an umbrella term for long-term conditions in which the gut becomes inflamed because of an overactive immune response. The two main types are ulcerative colitis, which affects the lining of the large bowel (colon and rectum), and Crohn’s disease, which can affect any part of the digestive tract and goes deeper into the bowel wall. Typical symptoms include diarrhoea (sometimes with blood or mucus), tummy pain and cramping, urgency, tiredness and weight loss, and it can also cause problems outside the gut such as joint, skin and eye inflammation. IBD is not the same as irritable bowel syndrome, which does not cause this inflammation or damage. The cause is not fully understood but involves a mix of genetic predisposition, the gut microbes and environmental triggers, with smoking notably worsening Crohn’s disease. It typically follows a relapsing course of flares and periods of remission, and diagnosis usually involves blood and stool tests, endoscopy (camera tests) with biopsies, and sometimes scans.
How it is treated
Care has two clear goals: bringing an active flare under control (inducing remission), and then keeping the disease quiet over the long term (maintaining remission). Treatment is tailored to the type of IBD, how severe it is, where in the gut it is and how it behaves over time. Medicines that calm inflammation are used to settle flares quickly, while other treatments work in the background to keep the immune system from driving further inflammation and to reduce reliance on short courses of stronger anti-inflammatory medicine. For disease that is more severe or does not respond, treatments that target specific parts of the immune response, including biologic injections, are used. Surgery can be needed in some people, particularly in Crohn’s disease or for complications. Throughout, the aim is lasting remission, healing of the bowel lining, good nutrition and quality of life, with regular monitoring and bowel-cancer surveillance where appropriate.
For this condition, these medicines
Medicine classes used for Inflammatory bowel disease (IBD)
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.
Symptom checker
Symptoms that can point to Inflammatory bowel disease (IBD)
Inflammatory bowel disease (IBD) can be one cause of these symptoms. Each guide explains the other possible causes and the red-flag warning signs that mean you should get urgent help:
By active ingredient
Specific medicines used for Inflammatory bowel disease (IBD)
Dose-free guides to individual active ingredients used in inflammatory bowel disease (ibd) — what each is, how it works, how to take it, and its advantages and disadvantages:
Beyond medication
Lifestyle and self-care
Stopping smoking (especially important in Crohn’s disease), eating well and addressing deficiencies such as iron, staying up to date with recommended vaccinations and not abruptly stopping treatment when feeling well all help keep IBD in remission and reduce complications.
When to get help
When to see a doctor
Seek urgent medical help if you have severe or persistent tummy pain, a lot of blood in your stools, ongoing vomiting, a high fever, or signs of dehydration, as a severe flare can need hospital care. Tell your IBD team promptly about a worsening flare, new joint, eye or skin symptoms, or any concerns while on immune-modulating or biologic treatment, including signs of infection. Immune-modulating tablets such as azathioprine and methotrexate need a check before starting and regular blood-test monitoring; methotrexate must not be used in pregnancy and reliable contraception is needed.
Not sure how urgent it is? It is always OK to call NHS 111 for advice, day or night.
Answers
Inflammatory bowel disease (IBD): frequently asked questions
What medicines are used for inflammatory bowel disease?
Treatment depends on the type and severity. Aminosalicylates are a mainstay for ulcerative colitis, corticosteroids are used as short courses to settle a flare, and immune-modulating treatments such as azathioprine or methotrexate help keep the disease in remission and reduce reliance on steroids. For more severe or resistant disease, biologic injections such as anti-TNF treatments target specific parts of the immune response. Your specialist tailors the combination to you.
Is IBD the same as irritable bowel syndrome (IBS)?
No. IBD (Crohn’s disease and ulcerative colitis) involves actual inflammation and damage to the gut and is diagnosed with tests such as endoscopy and biopsies. IBS causes troublesome symptoms but no inflammation or damage. They are different conditions, although the symptoms can overlap, which is why tests are used to tell them apart.
Why do I have to keep taking treatment when I feel well?
IBD tends to flare and then settle, and maintenance treatment works in the background to keep the disease quiet and the bowel healed. Stopping when you feel well can let inflammation return. Keeping the disease in remission also lowers the risk of complications, so it is best not to stop without discussing it with your IBD team.
Can diet cure inflammatory bowel disease?
No single diet cures IBD, but good nutrition is important and some people find certain foods affect their symptoms. In Crohn’s disease, specific nutritional treatments are sometimes used to settle a flare, particularly in children. A dietitian can help you eat well, correct deficiencies such as iron, and manage symptoms alongside your medical treatment.
Keep reading
Related articles
Sources
Where this is drawn from
- NICE NG129: Crohn’s disease: management; NICE NG130: Ulcerative colitis: management.
- NICE CKS: Inflammatory bowel disease.
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