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Can I take Lactulose and Paracetamol together?

Guide för läkemedelsinteraktioner

There are no known interactions between lactulose and paracetamol. It is safe to take these two medicines together.

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Varför detta händer

Lactulose is a sugar-based laxative that works locally in the bowel and is not absorbed into the bloodstream. Paracetamol is absorbed in the small intestine and processed by the liver. Because they work in different parts of the body and are handled by different systems, they do not interfere with each other.

You can take both medicines as prescribed or according to the packet instructions. Ensure you drink plenty of water while taking lactulose to help it work effectively.

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Liver disease

You must not exceed the maximum dose of paracetamol, as this can cause serious liver damage. If you have existing liver problems, you must consult your doctor before use as you may be at higher risk of toxicity.

Galactosaemia

You must not take lactulose if you have galactosaemia, a rare genetic disorder where your body cannot process galactose.

Diabetes

If you are taking high doses of lactulose for liver disease (portal systemic encephalopathy), the sugar content may affect your blood glucose levels.

Combination medicine use

Many other medicines (such as cold and flu remedies) also contain paracetamol. Taking more than one product containing paracetamol can lead to a dangerous overdose.

Alkohol

It is best to avoid or strictly limit alcohol when taking paracetamol. Combining alcohol and paracetamol increases the risk of serious liver damage.

It is best to avoid or strictly limit alcohol when taking lactulose. Alcohol can cause dehydration, which may worsen the constipation you are trying to treat. Additionally, if you are taking lactulose for liver disease (hepatic encephalopathy), alcohol must be avoided entirely as it can significantly worsen your condition.

Water and Fluids

It is essential to drink plenty of fluids (such as water) while taking lactulose. This medicine works by drawing water into the bowel to soften stools; if you do not drink enough, the medicine may not work effectively and you may become dehydrated.

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Taking multiple medicines? Our Interaktionskontroll för läkemedel helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Ansvarsfriskrivning

Denna information är endast avsedd för allmän utbildning och bör inte användas som en ersättning för professionell medicinsk rådgivning. Rådfråga alltid din läkare, apotekare eller annan kvalificerad vårdpersonal innan du fattar beslut om dina mediciner. Individuella omständigheter kan variera, och endast en vårdpersonal som känner till din medicinska historia kan ge personlig vägledning.

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Artikelhistorik

Informationen på denna sida är skriven och granskad av kvalificerade kliniker.

  • 25 jan 2026 | Ursprungligen publicerad
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