Lactulose: Uses, Side Effects & Brands in Pakistan

Lactulose is a syrup used for constipation. It is sold in Pakistan under brands such as Duphalac, Lilac and many others, and is commonly used for children, older adults and during pregnancy.

How Lactulose works

Lactulose is a sugar that the body cannot digest. It draws water into the bowel, softening the stool and making it easier to pass. In liver disease it also lowers ammonia, a toxin that can cause confusion.

What is Lactulose used for?

  • Constipation in adults and children
  • Hepatic encephalopathy (confusion caused by severe liver disease)

Side effects of Lactulose

Not everyone gets side effects. The ones reported more often are:

  • Bloating and wind
  • Stomach cramps
  • Diarrhoea at higher doses
  • Nausea

Get medical help straight away if you notice signs of a serious allergic reaction, such as swelling of the face, lips or throat, difficulty breathing, or a widespread rash.

Precautions and warnings

  • It usually takes one to two days to work.
  • Drink plenty of fluids while taking it.
  • Do not use it if you have galactosaemia or a bowel blockage.
  • See a doctor if constipation lasts more than two weeks or comes with weight loss, bleeding or severe pain.
  • People with diabetes should be aware that the syrup contains some sugars.

Frequently asked questions about Lactulose

Is lactulose safe in pregnancy?

Lactulose is commonly used for constipation in pregnancy because very little is absorbed. Ask your doctor first.

How quickly does lactulose work?

It usually takes one to two days. It is not designed for immediate relief.

Lactulose brands and prices in Pakistan

Medimart lists 30+ products containing Lactulose from different manufacturers. Compare strengths, pack sizes and prices below and order online with cash on delivery.

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Medical disclaimer: This page is for general information only and does not replace advice from a doctor or pharmacist. Do not start, stop or change any medicine, or its dose, without speaking to a qualified healthcare professional.