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Can I take Oxycodone and Paracetamol together?

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Oxycodone and paracetamol are often prescribed together to provide better pain relief than either medicine alone. However, taking them together increases the risk of side effects like constipation, nausea, and drowsiness. The most serious risk is that many oxycodone products already contain paracetamol (co-proxamol or similar brands); taking extra paracetamol on top of these can lead to a dangerous overdose and severe liver damage.

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Varför detta händer

These drugs work in different ways to block pain (oxycodone works on the brain and central nervous system, while paracetamol works more on the peripheral nerves). Because they use different pathways, they have an 'additive' effect, meaning they boost each other's pain-killing power. They do not significantly change how the other is absorbed or broken down by the body.

It is usually safe to take these together if they have been prescribed that way by a doctor. However, you must check the packaging of your oxycodone carefully to see if it already contains paracetamol. Do not exceed the maximum daily dose of paracetamol (usually 4000mg or eight 500mg tablets in 24 hours). It is best to avoid or strictly limit alcohol when taking this combination, as both paracetamol and alcohol can strain the liver, and alcohol increases the sedative effects of oxycodone.

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Opioid dependence/Addiction

Oxycodone is highly addictive. Long-term use can lead to physical dependence and withdrawal symptoms if stopped suddenly.

Respiratory depression

Oxycodone can dangerously slow or stop your breathing, especially when first starting or if the dose is increased. This risk is much higher if taken with alcohol or other sedatives.

Liver damage (Overdose)

Taking more than the recommended dose of paracetamol can cause fatal liver failure. You must check all other medicines (like cold and flu remedies) to ensure they do not also contain paracetamol.

Alkohol

It is best to avoid or strictly limit alcohol when taking these medicines. Combining alcohol with paracetamol increases the risk of liver damage. Combining alcohol with oxycodone can cause dangerous levels of drowsiness, breathing difficulties, and a fatal overdose.

Grapefruit juice

Avoid drinking grapefruit juice or eating grapefruit while taking oxycodone. Grapefruit can increase the amount of oxycodone in your blood, which makes side effects like extreme sleepiness and slowed breathing more likely.

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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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