Dulcolax is a leading over-the-counter laxative trusted by healthcare professionals and patients for decades. Its active ingredient, bisacodyl, provides gentle yet effective relief from occasional constipation by stimulating bowel movements directly in the colon. Available in multiple formulations including coated tablets and suppositories, Dulcolax offers flexibility to meet individual needs while ensuring predictable, overnight relief. It is a well-studied, reliable option for those seeking a non-habit forming solution to restore regularity and comfort.

Features

• Active ingredient: bisacodyl (5 mg per tablet)
• Coated tablet design for targeted release in the colon
• Available in tablet and suppository formulations
• Stimulant laxative class
• Onset of action: 6–12 hours for tablets; 15–60 minutes for suppositories
• Non-habit forming with appropriate use
• Sugar-free and gluten-free formulation

Benefits

• Provides predictable, effective relief from occasional constipation
• Gentle stimulation helps restore natural bowel rhythm
• Flexible dosing options (oral or rectal) accommodate individual preferences
• Works overnight when taken at bedtime
• Trusted by healthcare providers for decades
• Minimizes straining and discomfort associated with constipation

Common use

Dulcolax is commonly used for the relief of occasional constipation. It is also frequently employed in medical settings to prepare the bowel for diagnostic procedures such as colonoscopy, surgery, or radiological examinations. Many users find it helpful for re-establishing regularity after travel, dietary changes, or periods of inactivity. It is not intended for long-term daily use unless directed by a physician.

Dosage and direction

Adults and children 12 years and older:

• Tablets: 1 to 3 tablets taken orally once daily, preferably at bedtime.
• Suppositories: 1 suppository inserted rectally once daily.

Children 6–11 years:

• Tablets: 1 tablet taken orally once daily.
• Suppositories: Use only under medical supervision.

Tablets should be swallowed whole with water; do not crush or chew. Do not take within 1 hour of antacids or dairy products. Suppositories should be unwrapped and inserted pointed end first. Use exactly as directed on the label or by a healthcare provider.

Precautions

Do not use for more than 7 days unless directed by a physician. Prolonged use may lead to dependence on laxatives or electrolyte imbalance. Use with caution in patients with dehydration, kidney disease, or sudden changes in bowel habits that persist for more than 2 weeks. Not recommended for use during pregnancy or breastfeeding without medical advice. Discontinue use if rectal bleeding or severe abdominal pain occurs.

Contraindications

Dulcolax is contraindicated in patients with known hypersensitivity to bisacodyl or any component of the formulation. It should not be used in individuals with acute surgical abdomen, appendicitis, nausea, vomiting, symptoms of bowel obstruction, or severe abdominal pain. Avoid use in patients with acute inflammatory bowel diseases such as Crohn’s disease or ulcerative colitis.

Possible side effects

Common side effects may include abdominal discomfort, cramping, mild nausea, or gas. These are generally mild and transient. Less frequently, dizziness, rectal irritation (with suppositories), or mild dehydration may occur. Rare but serious side effects include severe abdominal pain, rectal bleeding, electrolyte disturbances, or allergic reactions such as rash or difficulty breathing. Discontinue use and seek medical attention if severe side effects occur.

Drug interaction

Bisacodyl may interact with certain medications, including diuretics, corticosteroids, or other drugs that affect electrolyte balance. Antacids, milk, or proton pump inhibitors may break down the enteric coating of tablets if taken concurrently, leading to stomach irritation or reduced efficacy. Always inform your healthcare provider of all medications, supplements, or herbal products you are using.

Missed dose

If you miss a dose of Dulcolax, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

Overdose

Overdose may result in severe cramping, diarrhea, dehydration, or electrolyte imbalance. Symptoms can include weakness, dizziness, muscle cramps, and fainting. In case of suspected overdose, seek immediate medical attention or contact a poison control center. Treatment is supportive and may include fluid and electrolyte replacement.

Storage

Store at room temperature (20–25°C or 68–77°F), away from moisture, heat, and direct light. Keep suppositories in their foil wrapper until use. Keep out of reach of children and pets. Do not use after the expiration date printed on the packaging.

Disclaimer

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any new treatment. Do not disregard professional medical advice or delay in seeking it because of something you have read here.

Reviews

Dulcolax has consistently received positive feedback from users who appreciate its reliability and effectiveness. Many note that it provides gentle and predictable relief, especially when used as directed at bedtime. Healthcare professionals often recommend it for short-term use due to its well-understood mechanism and safety profile. Some users report mild cramping, though this is generally described as manageable. Overall, it maintains a strong reputation as a trusted OTC option for constipation relief.