Bisacodyl
Also sold as: Dulcolax
No prescription neededConstipation (laxatives)
Comes as:TabletSuppository
Usual adult dose
Usual adult dose: 5 to 10 mg tablets at night (works in 6 to 12 hours), or one 10 mg suppository in the morning (works in 15 to 60 minutes). Swallow tablets whole. Do not use for more than 5 days without a doctor.
Your doctor may give you a different dose. Children's doses depend on weight.
Side effects
Common
- stomach cramps
- diarrhoea
- nausea
- irritation around the anus (suppository)
Serious — get help
Stop taking it and see a doctor straight away if you notice:
- severe diarrhoea with weakness or dizziness (dehydration
- low potassium)
- rectal bleeding
Do not take it, or take care, if
- Bowel blockage, appendicitis or severe stomach pain of unknown cause
- Severe dehydration
- Children under 10 years unless a doctor advises
- Do not take tablets within 1 hour of milk or antacids
Interactions
Medicines that can react with this one.
Moderate1 medicineTake together only with care. Ask your doctor or pharmacist.
- Digoxin
Overuse of laxatives can lower potassium and increase the risk of digoxin toxicity.
Minor1 medicineUsually not a problem, but tell your doctor.
- Aluminium hydroxide + Magnesium hydroxide
Antacids can dissolve the tablet coating early and cause stomach irritation; take them 1 hour apart.