Bisacodyl
Bisacodyl 12 Suppository
What is Bisacodyl?
Bisacodyl is a medication used to treat constipation and to help empty the bowels before surgery or medical procedures. It works by stimulating the intestines to promote bowel movements.Side Effects
- Lightheadedness or fainting.
- Nausea or vomiting.
- Bleeding from your rectum.
Warnings
- Tell your doctor if your constipation does not improve after using this medicine for 1 week.
- Make sure your doctor knows if you have any type of stomach or intestinal (bowel) problems. These may include diverticulitis, intestinal blockage, rectal bleeding, or moderate to severe stomach pain.
- Sweating or seizures (especially in children or older adults).
- Nausea or vomiting.
- Lightheadedness or fainting.
Prescription savings · · · ·
What is Bisacodyl ?
Bisacodyl is a medication used to treat constipation and to help empty the bowels before surgery or medical procedures. It works by stimulating the intestines to promote bowel movements.- Lightheadedness or fainting.
- Nausea or vomiting.
- Bleeding from your rectum.
- Dark, tarry stools.
- Sweating or seizures (especially in children or older adults).
- Tell your doctor if your constipation does not improve after using this medicine for 1 week.
- Make sure your doctor knows if you have any type of stomach or intestinal (bowel) problems. These may include diverticulitis, intestinal blockage, rectal bleeding, or moderate to severe stomach pain.
- Sweating or seizures (especially in children or older adults).
- Nausea or vomiting.
- Lightheadedness or fainting.
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Bisacodyl 12 Suppository
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Bisacodyl is an over-the-counter stimulant laxative used for short-term relief of occasional constipation and to clean out the bowels before a colonoscopy or surgery. It is the generic form of Dulcolax and is also sold under names like Correctol, Fleet Bisacodyl, and Alophen. Even though you can buy it without a prescription, a free Rx.com bisacodyl coupon can lower the checkout price at the pharmacy counter, especially for larger tablet counts or when your provider writes it as part of a bowel-prep regimen. Enter your ZIP above to see today's price at pharmacies near you.
What is bisacodyl and how does it work?
Bisacodyl is a stimulant laxative. It works directly on the muscles of the intestinal wall, prompting the bowel to contract and move stool along, which produces a bowel movement. It comes as oral tablets with a special enteric (protective) coating and as rectal suppositories.
It is intended for short-term relief of occasional constipation and irregularity. It is also widely used to empty the bowels before a colonoscopy, surgery, or other medical procedures, often combined with other products as part of a bowel-prep regimen your provider directs. Oral tablets usually work overnight, while rectal suppositories tend to act much faster.
How to save on bisacodyl with an Rx.com coupon
Bisacodyl is inexpensive and sold over the counter, but prices still vary a lot from one pharmacy to another, and store-brand versions can cost more than you expect for higher tablet counts. Because bisacodyl is sometimes prescribed as part of a colonoscopy or surgery bowel prep, a free Rx.com discount coupon can bring the cash price down at the register on both the OTC product and any prescribed version.
To find the lowest price, enter your ZIP code above to compare today's cost at pharmacies near you, then show the Rx.com coupon at the counter. There is no membership or insurance required, and you can use the coupon whether you are buying it off the shelf or filling a prescription your provider wrote.
Bisacodyl vs. other laxatives
Bisacodyl is one of several types of laxatives, and the right choice depends on your situation. As a stimulant laxative, it acts more directly than a stool softener or an osmotic product, which is why it is often chosen for quick relief or bowel prep.
- Senna is another stimulant laxative that works in a similar way.
- Docusate is a stool softener that makes stool easier to pass rather than stimulating the bowel.
- Polyethylene glycol and magnesium citrate are osmotic laxatives that draw water into the bowel, and both are commonly used for colonoscopy prep.
- Lactulose is a prescription osmotic laxative used for constipation and certain other conditions.
This is general information, not medical advice. Ask your pharmacist or provider which laxative fits your needs, particularly for bowel prep before a procedure.
Safety and side effects
Bisacodyl is meant for occasional, short-term use, not for daily or long-term use. Overusing laxatives can lead to dependence (a "laxative habit"), electrolyte imbalance, and loss of normal bowel function. Do not take the oral tablets within 1 hour of milk, dairy, or antacids, because these can dissolve the protective coating too early and cause stomach or abdominal cramps.
Do not use bisacodyl if you have abdominal pain, nausea, or vomiting, if you may have a bowel obstruction, or if you have had a sudden change in bowel habits lasting more than 2 weeks, without first talking to your provider. Stop and seek care if you have rectal bleeding or fail to have a bowel movement after use, as these can signal a more serious condition. Common side effects include abdominal cramping, stomach discomfort, nausea, diarrhea, and rectal burning or irritation with the suppositories. This is not a complete list; ask your pharmacist or provider with any questions.
This Bisacodyl information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Bisacodyl on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.