Can I take Pizotifen and Sertraline together?
Drug interaction guide
Originally published 24 Jan 2026
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Taking pizotifen and sertraline together can increase the risk of a rare but serious condition called serotonin syndrome. It may also make you feel more drowsy or sleepy than usual.
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Why this happens
Both medicines affect a chemical in the brain called serotonin. Sertraline increases serotonin levels, and while pizotifen is mainly used to block certain serotonin receptors, it can still interfere with how the body handles this chemical. When combined, serotonin levels can become too high. Additionally, both drugs can have a calming effect on the brain, leading to increased tiredness.
What you should do
You can usually take these together if prescribed by your doctor, but you must be aware of the signs of serotonin syndrome. Seek medical help immediately if you experience high fever, agitation, confusion, shivering, muscle twitching, or rapid heartbeat. Avoid driving or using heavy machinery until you know how this combination affects your alertness.
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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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Article history
The information on this page is written and peer reviewed by qualified clinicians.
24 Jan 2026 | Originally published

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