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What Is Dulcolax?

Dulcolax Laxative Liquid Gels are an over-the-counter stimulant laxative containing 5 mg of bisacodyl per capsule. They are used for temporary relief of occasional constipation and irregularity. Current labeling states that a bowel movement generally occurs within 6 to 12 hours after a dose.

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What Is Dulcolax?

Dulcolax Laxative Liquid Gels are an over-the-counter stimulant laxative containing 5 mg of bisacodyl per capsule. They are used for temporary relief of occasional constipation and irregularity. Current labeling states that a bowel movement generally occurs within 6 to 12 hours after a dose.

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How Does Dulcolax Work?

Bisacodyl is classified as a stimulant laxative. It promotes bowel activity that moves stool through the intestine and leads to a bowel movement. The current Dulcolax Liquid Gels label is intended for short-term relief of occasional constipation rather than ongoing daily laxative use.

Who Can Use Dulcolax Liquid Gels?

Current 5 mg Liquid Gels directions include adults and children age 6 and older. Adults and children age 12 and older use the adult dose. Children age 6 to under 12 use one capsule daily, while children younger than 6 require medical advice before use.

How Are Dulcolax Liquid Gels Taken?

Adults and children age 12 and older start with one 5 mg capsule daily and can increase to two or three capsules in a single daily dose when needed. Children age 6 to under 12 take one capsule daily. Capsules are taken with a glass of water and are not chewed.

What Safety Precautions Apply to Dulcolax?

Dulcolax should not be taken within one hour after milk or an antacid. Stomach discomfort, faintness, and cramps can occur. Medical advice is recommended before use for stomach pain, nausea, vomiting, or a sudden bowel habit change lasting more than two weeks. Rectal bleeding or no bowel movement after use calls for medical evaluation.

Frequently Asked Questions About Dulcolax

What medicine is in Dulcolax Liquid Gels?

Each current Liquid Gel capsule contains 5 mg of bisacodyl, a stimulant laxative.

How long does Dulcolax take to work?

Current labeling states that a bowel movement generally occurs within 6 to 12 hours.

What is the adult Dulcolax dose?

Adults start with one capsule daily and can increase to two or three capsules in one daily dose when needed.

Can Dulcolax be taken with milk or an antacid?

Not within one hour. Current labeling directs users to separate the dose from milk or antacids by at least one hour.

References

Bisacodyl. MedlinePlus. https://medlineplus.gov/druginfo/meds/a601027.html. Date Accessed September 25, 2026.

Bisacodyl. PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/bisacodyl. Date Accessed September 25, 2026.

Bisacodyl. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK547733/. Date Accessed September 25, 2026.

DailyMed - BISACODYL tablet, coated. https://www.dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=feca7150-672c-4927-aafd-a74d7a06263f. Date Accessed September 25, 2026.

DailyMed - DULCOLAX LAXATIVE (bisacodyl) capsule, liquid filled. https://www.dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=919375cd-7646-4958-9e2b-cec2e1b2bd49. Date Accessed September 25, 2026.