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Health Condition
Diverticular disease is a digestive condition where small pouches (diverticula) form in the bowel. Most people come to this page looking for safe, pharmacy-led support for day-to-day symptoms such as bloating and wind, lower tummy discomfort, and changes in bowel habits including constipation or short-lived diarrhoea. For many, the aim is practical symptom relief alongside steady routine changes—gradually increasing fibre, drinking enough fluids, and supporting regular bowel movements—without triggering more discomfort.
WithAid is a UK based and regulated pharmacy. Use the links below to shop by your main symptom and compare suitable formats (tablets, capsules, liquids or sachets). If symptoms are new, persistent, worsening, or you take regular medicines, speak to a pharmacist for tailored guidance. For general wellbeing information and product how-tos, browse our Guides. Reviewed by our pharmacist team: January 2026. Responsible Pharmacist: Mohammed Sajjad (MPharm).
Diverticular disease usually refers to having diverticula and symptoms such as bloating or changes in bowel habit. Diverticulitis is when the pouches become inflamed or infected and is more likely to cause worsening abdominal pain, fever and feeling unwell, and should be assessed promptly.
Start with the range that matches your main symptom, such as constipation relief medicines or diarrhoea relief and rehydration support. If you’re not sure what’s suitable for you, a pharmacist can help you choose safely.
Many people use fibre supplements to support regular bowel movements, especially if dietary fibre is low. Increase fibre gradually and drink plenty of fluids. If fibre worsens pain, marked bloating or symptoms change, seek pharmacist or GP advice.
Increase fibre slowly over days to weeks so your gut can adjust. Keep fluid intake up. If you get worsening pain, significant bloating, or persistent changes in bowel habits, speak to a pharmacist or GP before continuing.
Check who the product is suitable for, how it should be taken and how quickly it works. Avoid self-treating if constipation is new, persistent or keeps returning, or if you have severe abdominal pain, unexplained weight loss, or blood in stools—get medical advice.
Anti-diarrhoea medicines may be appropriate for short-term diarrhoea in adults, but avoid self-treatment if you have fever, blood in stools, severe pain, or symptoms that keep returning. Consider rehydration support and ask a pharmacist what’s suitable.
Seek urgent advice if you develop severe or worsening abdominal pain (especially on the left side), fever, vomiting, blood in stools, faintness, or signs of dehydration. If you’re older, pregnant, immunocompromised, or have other bowel conditions, get advice sooner.
Important: This information supports general product choice and is not a substitute for medical advice. Always read the label or patient information leaflet and follow dosing instructions. If symptoms are severe, persistent or worsening, or you suspect diverticulitis, speak to a pharmacist, contact your GP or NHS 111, or seek urgent care. For regulatory and pharmacy information, see Company details.
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