Safely Buy Cephulac ( Lactulose ) from Canada Prescriptions Plus.

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Formulation : Syrup
Drug Name Dosage Quantity Price Buy Now
Lactulose 10g/15mL 500mL $39.10 Add To Cart
Dosage: 10g/15mL
Quantity: 500mL
Price: $39.10


Cephulac is a brand name for lactulose, a synthetic sugar solution that is used to treat constipation and hepatic encephalopathy.

Cephulac works by increasing the number of bowel movements per day and decreasing the amount of ammonia in the blood.

Lactulose is a colonic acidifier that lowers elevated blood ammonia levels and improves the symptoms of patients with portosystemic encephalopathy.

Lactulose is used orally or rectally to treat or prevent complications of liver disease (hepatic encephalopathy).

Use and Dosage

If you are taking this medication by mouth for liver disease, take it as directed by your doctor, usually 3 to 4 times a day. To improve the taste, you may mix it into fruit juice, water, milk, or a soft dessert. The goal is to have 2 to 3 soft stools each day. The dosage is based on your medical condition and response to treatment (for example, the number of soft stools each day).

If you are taking this medication by mouth for constipation, take it as directed by your doctor, usually once daily.

This medication can also be given rectally as an enema for liver disease. Mix the recommended amount of lactulose with 700 milliliters (24 ounces) of water or normal saline. Give the solution into the rectum and keep the liquid inside for 30 to 60 minutes as directed by your doctor. If you keep the enema inside for less than 30 minutes, repeat the dose unless directed otherwise.

Use this medication regularly to get the most benefit from it. Remember to use it at the same time each day.

When this drug is given rectally for liver disease, an improvement in your mental status may occur in as little as 2 hours, but if you are taking this medication by mouth, it may take up to 24 to 48 hours. If you are using this medication for constipation, it may take up to 48 hours to have a bowel movement. Tell your doctor if your condition lasts or gets worse.

Side Effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using lactulose and call your doctor at once if you have severe or ongoing diarrhea.

Common side effects of lactulose may include:

  • Bloating or gas
  • Stomach pain
  • Diarrhea
  • Nausea or vomiting

This is not a complete list of side effects and others may occur.


Before using lactulose, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: a low galactose diet (such as a diet that includes few or no milk products), certain other bowel problems (bowel obstruction), and diabetes.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

This medication contains different sugars. If you have diabetes, this medication may affect your blood sugar. Check your blood sugar regularly as directed and share the results with your doctor. Your doctor may need to adjust your diabetes medication, exercise program, or diet.

During pregnancy, this medication should be used only when needed. Discuss the risks and benefits with your doctor.

It is unknown if this drug passes into breast milk. Consult your doctor before breastfeeding.

Form and Strengths

Cephulac is available in the following form and strengths:

  • Lactulose Syrup:
    • 10 g/15 ml


What happens if I miss a dose?

Take the medicine as soon as you can but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.

What happens if I overdose?

Seek emergency medical attention.

Overdose may cause nausea, vomiting, diarrhea, and stomach cramps, or symptoms of low blood potassium or low blood sodium (confusion, weakness, constipation, irregular heartbeats, fluttering in your chest, increased thirst or urination, numbness or tingling, muscle weakness or limp feeling).

What should I avoid while taking lactulose?

Ask your doctor before taking any other laxative or antacid and take only the type your doctor recommends.



Additional information

Brand Name:


Scientific Name:


Other Names:

Lactulose Syrup



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