Cephulac (Lactulose)


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FormulationFormulation: Syrup
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Cephulac is indicated for the treatment of constipation. It is a type of laxative that works by drawing water into the colon, softening the stool, and increasing bowel movements. It is commonly used to treat constipation in both adults and children, and it may also be used to treat certain liver disorders.


  • When taking Cephulac by mouth for liver disease, it is typically taken 3 to 4 times a day as directed by a healthcare provider. The goal is to have 2 to 3 soft stools each day, and the dosage is based on the individual's medical condition and response to treatment.
  • To improve the taste, Cephulac may be mixed into fruit juice, water, milk, or a soft dessert.
  • Cephulac can also be given rectally as an enema for liver disease. The recommended amount of lactulose should be mixed with water or normal saline and administered into the rectum. The liquid should be kept inside for 30 to 60 minutes as directed by a healthcare provider.
  • When using Cephulac for constipation, it is usually taken once daily as directed by a healthcare provider.
  • When administered rectally for liver disease, an improvement in mental status may occur in as little as 2 hours. If taken by mouth, it may take up to 24 to 48 hours for the medication to take effect. For constipation, it may take up to 48 hours to have a bowel movement.
  • Use this medication regularly in order to get the most benefit from it and to use it at the same time each day.
  • Follow the specific instructions provided by a healthcare provider regarding the dosage and administration of Cephulac, as individual medical conditions and responses to treatment can vary.
  • Gas
  • Bloating
  • Burping
  • Stomach rumbling/pain
  • Nausea
  • Cramps
  • Diarrhea
  • Abdominal cramps
  • Bowel distention
  • Vomiting

These side effects are usually mild and temporary. If you experience severe stomach cramps, diarrhea, or any other serious side effects, seek medical attention.

Consult a healthcare provider before taking any medication, including Cephulac. They can provide personalized advice based on your specific medical history and condition.

Take Cephulac exactly as directed on the label or as prescribed by your healthcare provider.  Do not use larger or smaller amounts or take it for a longer duration than recommended.

If you suspect an overdose of Cephulac, contact your healthcare provider or the Poison Control Center immediately.

Cephulac may interact with other medications you are taking. Inform your healthcare provider about all the medications, supplements, and herbal products you are currently using to avoid potential interactions.

If you have any specific medical conditions or allergies, inform your healthcare provider before taking Cephulac. They can determine if Cephulac is safe and appropriate for you. Additionally, keep all appointments with your healthcare provider and laboratory tests while taking Cephulac.

Brand Name:


Generic name:


Other Names:

Lactulose Syrup

Strength(s): 10g/15mL
Quantities Available: 500


Important Information
The information above for Cephulac (Lactulose) was provided to DoctorSolve.com by third parties. In no way should this information substitute for the advice of a physician. Consult a doctor or qualified health care professional if you have any medical concerns.
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