Can I take Cetirizine and Paracetamol together?
Drug interaction guide
Originally published 25 Jan 2026
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There are no known significant interactions between cetirizine and paracetamol. It is generally considered safe to take these two medicines together.
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It is generally safe to take cetirizine and paracetamol together as they do not interfere with how the other is absorbed or removed from the system.
These medicines work in different ways and are processed by different pathways in the body. Paracetamol is primarily processed by the liver to relieve pain and fever, while cetirizine is an antihistamine that is mostly cleared by the kidneys.
How to take cetirizine and paracetamol
You can take paracetamol and cetirizine at the same time if needed.
Always follow the dosage instructions on the packet for each individual medicine.
If you feel unusually sleepy, avoid driving or operating machinery until you feel more alert.
Important precautions
Liver disease or heavy alcohol consumption
You are at a much higher risk of serious liver damage from paracetamol; do not exceed the recommended dose and consult your doctor before use.
Epilepsy or history of seizures
Cetirizine may increase the risk of having a seizure.
Concurrent use of other cold, flu, or pain remedies
Many other medicines contain paracetamol; taking them together can lead to a fatal overdose. Always check labels for paracetamol or APAP.
Food and drink warnings
Alcohol
While cetirizine is a non-drowsy antihistamine, alcohol can increase the risk of feeling sleepy or dizzy. It is best to avoid drinking alcohol while taking this medicine to see how it affects you first.
Using other medicines
Taking multiple medicines? Our Medicines Interaction Checker 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.
Disclaimer
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
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