Can You Take Codeine with Paracetamol?
Last reviewed: · Source: US FDA drug label database
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Codeine and paracetamol are safely combined — this is co-codamol, one of the most commonly prescribed combination painkillers.
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Is it safe to take Codeine with Paracetamol?
Codeine and paracetamol are combined in the widely prescribed co-codamol (available in 8/500 OTC and 15/500 or 30/500 on prescription). They work via different mechanisms and are not only safe to combine but provide better pain relief together than either alone. The key precautions are around the codeine component (dependence risk, constipation, avoid in pregnancy) and the paracetamol component (stay within 4g daily limit, check no hidden paracetamol in other medications).
How do Codeine and Paracetamol interact?
Paracetamol acts centrally on pain perception and fever. Codeine is a prodrug converted to morphine by CYP2D6, acting on mu-opioid receptors. No pharmacokinetic interaction; pharmacodynamic synergy for analgesia.
Data sourced from the US Food and Drug Administration (FDA) drug label database: OpenFDA co-codamol (acetaminophen-codeine) combination labelling.
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Don't take extra paracetamol alongside co-codamol — the paracetamol is already in the tablet. Use codeine for maximum 3 days OTC (dependence risk). Avoid in pregnancy and breastfeeding (codeine component). Ultra-rapid metabolisers produce more morphine — codeine is absolutely contraindicated in breastfeeding.
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What if I've already taken Codeine and Paracetamol?
Standard safe combination — no action needed. Check you are not exceeding the paracetamol daily limit by also taking other paracetamol-containing products.
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Not sure if this combination is safe for your specific situation?
HealthLabs.com lets you check liver enzyme or kidney function levels before combining medications long-term — no GP referral needed.
Check your levels at HealthLabs →Always speak to your pharmacist or GP for personalised medical advice. Affiliate link — we may earn a commission.
Frequently Asked Questions
Can I take codeine and paracetamol together?
Yes — this is co-codamol, a standard combination. It's safer and more effective than either alone. Don't add extra paracetamol on top.
What is co-codamol?
Co-codamol is a combination tablet containing codeine phosphate and paracetamol. Available OTC in 8/500 (8mg codeine, 500mg paracetamol) and on prescription in stronger doses.
Can I take ibuprofen with co-codamol?
Yes — ibuprofen, codeine and paracetamol can all be combined (they use different mechanisms). This gives maximum non-prescription pain relief. Don't add more paracetamol or codeine.
How long can I take co-codamol?
OTC co-codamol: maximum 3 days without GP advice (codeine dependence risk). Prescription co-codamol: as directed. For chronic pain, see your GP for a better long-term strategy.