Can You Take Codeine with Paracetamol?
Last reviewed: · Source: US FDA drug label database
Yes — paracetamol and codeine are commonly combined in co-codamol, a standard NHS prescription painkiller.
Is it safe to take Codeine with Paracetamol?
Paracetamol and codeine are combined in the widely prescribed medication co-codamol (available in 8/500, 15/500, and 30/500 strengths). The combination provides significantly better pain relief than paracetamol alone and is a standard NHS treatment for moderate to severe pain. Taking them separately is equivalent to taking co-codamol. As with all codeine-containing medicines, use the lowest effective dose for the shortest time necessary.
How do Codeine and Paracetamol interact?
Paracetamol works centrally to reduce pain signals in the brain (via COX-3 inhibition and serotonin pathway effects). Codeine is metabolised to morphine in the liver and then binds to opioid receptors, reducing pain perception. They act via completely separate mechanisms, making the combination effective and free from pharmacokinetic interactions.
Data sourced from the US Food and Drug Administration (FDA) drug label database: OpenFDA drug label data — codeine/acetaminophen combination products.
Who should be careful?
Patients with liver disease should use paracetamol cautiously. Codeine should be avoided in ultra-rapid metabolisers, children under 12, breastfeeding mothers, and those with respiratory conditions. Do not drink alcohol with this combination.
What if I've already taken Codeine and Paracetamol?
No immediate concern — this is a standard, widely used combination. If you feel unusually drowsy, confused, or have slow/shallow breathing, call 999.
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Frequently Asked Questions
Is paracetamol and codeine the same as co-codamol?
Yes. Co-codamol is simply a branded name for the combination of paracetamol and codeine. The numbers (e.g. 30/500) refer to the mg of codeine and paracetamol respectively.
Can I take paracetamol and codeine at the same time?
Yes. They are routinely combined and work better together than separately for moderate to severe pain.
Can I take co-codamol and extra paracetamol?
No. Co-codamol already contains paracetamol. Taking extra paracetamol on top could cause a paracetamol overdose. Always check the ingredients of any combination painkiller.
How long can I take paracetamol and codeine together?
Maximum 3 days for codeine without medical review, due to dependence risk. Paracetamol alone can be used longer but always follow the packet instructions.