What it does
Sulfolax is a laxative used to treat constipation.
Commonly used for: constipation
Read more in plain English ↓Plain-language summary for general understanding - not medical advice. Always follow your pharmacist/doctor.
Ask about this medicine
Answers come only from this medicine's registration record, BNF monograph and interaction data - not medical advice.
Hard to find? We help patients in Kenya source rare medicines. We don't sell or dispense medicines - licensed pharmacies do.
Source this medicineRegistration & product details
Source: Pharmacy and Poisons Board · fetched 2026-01-28 22:02:09 · updated 2026-03-23 04:47:17
About this medicine
Sulfolax is a laxative used to treat constipation.
What it treats
- constipation
How it works
It helps to soften stools and makes it easier to pass them.
Who it's for
It is suitable for adults and children who need relief from constipation.
AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.
Clinical monograph: sulfolax
Sulfolax is a laxative that is commonly used to treat constipation. It works by increasing the water content and bulk of the stool, facilitating its passage through the intestines. Sulfolax is often employed in situations where a rapid bowel evacuation is necessary, such as prior to medical procedures or in cases of fecal impaction.
Indications
- Constipation
- Bowel preparation for diagnostic procedures
- Fecal impaction
Dosage
Children: Refer to the BNF for Children for appropriate dosing.
Adults: Refer to the specific guidelines or consult the BNF for appropriate dosing.
Mechanism of action
Sulfolax acts by drawing water into the intestines through osmosis, which softens the stool and stimulates bowel movements. This mechanism is primarily due to the presence of sulfated polysaccharides that enhance intestinal motility and fluid secretion.
Pharmacodynamics
The pharmacodynamics of Sulfolax involve its osmotic properties that lead to increased intraluminal pressure, resulting in the stimulation of peristalsis. It also enhances the secretion of mucus in the intestines, which further aids in the movement of stool. The onset of action can vary, typically occurring within a few hours after administration.
Pharmacokinetics
Sulfolax is not significantly absorbed from the gastrointestinal tract, which allows it to exert its effects locally within the intestines. Because it remains in the gastrointestinal lumen, the systemic effects are minimal. The elimination of the drug is primarily through fecal excretion, with little to no metabolism occurring in the liver.
Adverse effects
- Abdominal cramps
- Diarrhea
- Nausea
- Electrolyte imbalance
- Dehydration
Interactions
- Increased effects with other laxatives
- May reduce the absorption of certain oral medications
Precautions
- Use with caution in patients with renal impairment
- Monitor for signs of dehydration
- Not recommended for long-term use
Pregnancy
Safety in pregnancy has not been established. Use only if clearly needed and prescribed by a healthcare provider.
Breast-feeding
Excreted in breast milk; use with caution and consult a healthcare provider.
Storage
Store in a cool, dry place away from direct sunlight. Keep out of reach of children.
Formulations
- Oral tablets
- Liquid formulation
AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.