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Drug Class
Osmotic Laxative
Common Uses
- Constipation (difficulty pooing)
- Hepatic encephalopathy
Common Brand Names
Osmowin, Actilac, Avolac, Duphalac, Lactulin
Overview
Lactulose is a laxative taken to treat constipation (difficulty pooing).
It's also taken to help a condition caused by severe liver disease called hepatic encephalopathy.
Lactulose comes as a sweet syrup that you swallow.
It's available on prescription in some countries and to buy from pharmacies.
Important Facts
- Lactulose relieves constipation by drawing water into your bowel to make poo softer.
- The most common side effects are diarrhoea, bloating and wind. These are usually mild and do not last long.
- Lactulose takes at least 2 days to work. Talk to your doctor if your constipation has not improved after 4 or 5 days.
- If you find the taste of lactulose too sweet, you can dilute it with fruit juice or water.
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