Bisacodyl tablet is found over-the-counter (OTC) and used as a laxative for occasional constipation. Typically, you take bisacodyl tablet by mouth once a day. It usually starts working within 6 to 12 hours after the dose. The most common side effects of bisacodyl tablet are belly discomfort and cramps.
Occasional constipation and irregular bowel movements
Bisacodyl tablet is a stimulant laxative. It works by stimulating muscles in your intestines (guts), which helps the stool move easier through your guts to empty the bowels. Another way bisacodyl tablet works is by preventing your body from drawing too much water away from your guts, which helps to soften the stool and relieve constipation.
Source: DailyMed
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
Available over the counter
Generally well-tolerated if taken as directed
Available as a lower-cost generic medication
Only taken once a day
Typically takes 6 to 12 hours to relieve constipation
Must ask provider first if pregnant, breastfeeding, or for children under 6 years old
Shouldn't take with antacids and milk
Should only be taken short-term (less than 7 days) unless otherwise directed by your provider
Make sure to swallow bisacodyl tablet tablets whole. Don't chew or crush the tablets since it can affect how well this medication works in your guts. If swallowing tablets is hard for you or your child, there's a suppository formulation that can be inserted into the rectum.
Don't take bisacodyl tablet within an hour of taking an antacid (Tums) or milk. This is because antacid and milk can dissolve the coating on bisacodyl tablet tablets, which might lead to more side effects from bisacodyl tablet, such as stomach irritation.
Let your provider know if you have nausea or vomiting before taking bisacodyl tablet because these might be signs of a more serious health condition that needs more medical attention. In addition, nausea or vomiting can cause dehydration, which can worsen your constipation. Make sure to stay hydrated if you're constipated and while taking bisacodyl tablet. Doing so might help your stool move easier through the gut and relieve constipation.
Before taking bisacodyl tablet, let your provider know if you have stomach pain or a sudden change in your bowel movements that last for more than 2 weeks. This is so your provider can make sure there are no other serious medical conditions going on.
Talk with your provider if you've been taking bisacodyl tablet for more than a week. Using this medication for a longer period of time than directed by your provider can cause your body to rely on this medication to relieve yourself.
Stop taking bisacodyl tablet if you have rectal bleeding or if you don't have a bowel movement after using it. Call your provider so they can check you out for any serious conditions.
Store bisacodyl tablet up and away and out of children's reach and sight. This prevents them from accidentally swallowing medication that's left out. Always put medication away every time you use it. If you think that your child might’ve accidentally swallowed bisacodyl tablet, call your Poison Control Center at 1-800-222-1222 right away even if you aren't completely sure.
Bisacodyl tablet can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
See a healthcare provider right away if you have stomach pain, nausea, or vomiting along with constipation. Also, let your provider know if you had to use laxatives for more than a week or if you still aren't able to have a bowl movement after taking bisacodyl tablet. These are signs that you need more medical attention.
Dosage | Quantity | Price as low as | Price per unit |
---|---|---|---|
5mg | 4 tablets | $2.60 | $0.65 |
Adults and children (ages 12 years and older): The typical dose is 5 mg to 15 mg by mouth once a day.
Children (ages 6 to 11 years old): The typical dose is 5 mg by mouth once a day.
Children (under 6 years old): Ask your child's provider.
Occasional constipation and irregular bowel movements
Occasional constipation and irregular bowel movements
By signing up, I agree to GoodRx's Terms and Privacy Policy, and to receive marketing messages from GoodRx.
American College of Obstetricians and Gynecologists. (2020). What can help with constipation during pregnancy?
Centers for Disease Control and Prevention. (2023). Put your medicines up and away and out of sight.
Geiss, Destin & Dunn Inc. (2023). Bisacodyl laxative- bisacodyl tablet, delayed release [package insert]. DailyMed.
Lawrensia, S., et al. (2022). Bisacodyl. StatPearls.
MedlinePlus. (2018). Bisacodyl.
Sanofi. (n.d.). Dulcolax® adult 5mg gastro-resistant tablets.
Sanofi. (n.d.). Dulcolax® soft chews.
Sanofi. (n.d.). Dulcolax® tablets.
Research prescriptions and over-the-counter medications from A to Z, compare drug prices, and start saving.