What it is used for
- Short-term relief of constipation
- Bowel clearance before some procedures (under guidance)
How it works
Bisacodyl stimulates the bowel muscles to contract and also increases fluid in the bowel, encouraging a bowel movement.
How it is taken
Comes as tablets (swallowed whole) and suppositories used in the rectum. Tablets typically work overnight, while suppositories act faster. Take it exactly as the label or your clinician directs, and avoid antacids or milk at the same time as the tablets, which are specially coated.
No doses here on purpose. The right strength and schedule depend on you — only a doctor or pharmacist should set them. Always follow your prescription and the label.
Common side effects
- Stomach cramps
- Wind
- Loose stools
- A feeling of urgency
Serious effects — get help
- Severe or persistent abdominal pain
- Ongoing diarrhea with dehydration or salt imbalance
- Rectal bleeding or irritation (with suppositories)
- Signs of worsening bowel function with prolonged misuse
If a reaction is severe — for example trouble breathing, swelling of the face or throat, or collapse — go to the nearest emergency room now or call your local emergency number. Do not wait for an online consultation.
Interactions to watch
- Diuretics and corticosteroids (added effect on potassium)
- Medicines affected by low potassium (such as digoxin)
- Antacids and milk reduce the tablet's coating effect — separate timing
Who should take care
- For short-term use; avoid long-term reliance
- Do not use with a bowel blockage, severe undiagnosed abdominal pain, or certain bowel conditions in flare
- Swallow tablets whole; do not crush or chew
- Discuss use in pregnancy and breastfeeding with a pharmacist
- Seek advice for ongoing constipation or unexplained bowel changes