Can I take 1.5mg and Omeprazole together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
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There is no known interaction between 1.5mg of melatonin and omeprazole. It is generally considered safe to take these two medicines together.
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Why this happens
Omeprazole (a stomach acid reducer) and melatonin (a sleep hormone) are processed by different pathways in the body and do not interfere with how the other works.
What you should do
Back to contentsYou can take these medicines together as prescribed. However, it is best to avoid or strictly limit alcohol while taking these, as alcohol can interfere with sleep quality and increase the risk of stomach irritation.
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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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Taking Folitrax (methotrexate) and Hqtor (hydroxychloroquine) together can increase the risk of side effects, particularly those affecting the liver. However, these two medicines are very commonly prescribed together by specialists to treat conditions like rheumatoid arthritis. While they work well as a team to control inflammation, they require careful monitoring.
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Can I take 1.0mg and Amlodipine together?
Taking sildenafil (Viagra) and amlodipine together can cause your blood pressure to drop lower than intended. This may make you feel dizzy, lightheaded, faint, or cause a headache.
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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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