How does bisacodyl work?
Bisacodyl stimulates the nerves in the colon, helping the bowel muscles contract and push stools through more quickly.
What is bisacodyl used to treat?
Bisacodyl is commonly used for:
- Short-term relief of constipation
- Bowel cleansing before medical procedures (such as a colonoscopy)
Who can take bisacodyl?
Bisacodyl is suitable for most adults and children over 6 years old.
Who might not be able to take bisacodyl?
Bisacodyl may not be suitable if you:
- Have severe dehydration
- Have a blockage in your gut (intestinal obstruction)
- Have appendicitis or inflammatory bowel conditions (such as Crohn’s disease or ulcerative colitis)
- Have had an allergic reaction to bisacodyl or similar medicines
Can I take bisacodyl if I’m pregnant or breastfeeding?
Bisacodyl is sometimes used during pregnancy and breastfeeding, but only under medical supervision.
What if I miss a dose?
If you forget a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—do not take extra doses to make up for it.
How effective is bisacodyl?
Bisacodyl is highly effective at relieving constipation, usually working within 6 to 12 hours (for tablets) or 15 to 60 minutes (for suppositories).
What should I do if I take too much?
Taking too much bisacodyl can cause diarrhoea, stomach cramps, and dehydration. If symptoms are severe, seek medical help immediately.
What dose of bisacodyl is usually taken?
- For constipation (adults and children over 12): 5mg to 10mg once daily, usually before bedtime
- For constipation (children 6 to 12 years): 5mg once daily
- For bowel cleansing before medical procedures: Higher doses as prescribed by a doctor
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What are the side effects of bisacodyl?
Common side effects include:
- Stomach cramps or discomfort
- Diarrhoea
- Feeling sick (nausea)
- Mild dehydration
Serious side effects, such as severe dehydration or electrolyte imbalances, require urgent medical attention.
How should I take bisacodyl?
Bisacodyl is available as tablets or suppositories:
- Tablets should be swallowed whole with water and not chewed or crushed.
- Suppositories should be inserted into the rectum, as directed.
When should bisacodyl be taken?
- Tablets: Taken before bedtime for results in the morning.
- Suppositories: Used in the morning, as they work more quickly.
What are the brand names for bisacodyl?
Bisacodyl is available as a generic medicine, but some branded versions include:
- Dulcolax
- Fleet Bisacodyl
Final thoughts
Bisacodyl is an effective short-term treatment for constipation, but it should not be used long-term without medical advice. If symptoms persist, speak to your doctor about alternative treatments.
