Can I take Allergan and Paracetamol together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
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There is no known interaction between Allergan (which is a brand name for various eye drops, most commonly containing brimonidine or artificial tears) and paracetamol.
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Why this happens
Paracetamol is processed by the liver and works on the central nervous system to relieve pain. Allergan eye drops (like Brimonidine) work locally in the eye or are processed differently by the body. They do not interfere with each other's absorption, metabolism, or effects.
What you should do
Back to contentsIt is safe to take paracetamol while using Allergan eye drops. Always follow the dosage instructions on the packaging for both products. If you are using a specific Allergan product not mentioned (like a medicated cream), check with a pharmacist, but generally, these medications do not interact.
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Using other medicines
Back to contentsTaking 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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Article history
The information on this page is written and peer reviewed by qualified clinicians.
14 Mar 2026 | Originally published

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