Can I take Bisoprolol and Fibre supplements together?
Drug interaction guide
Originally published 25 Jan 2026
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Taking fibre supplements at the same time as bisoprolol may reduce the amount of medicine your body absorbs. This could make the bisoprolol less effective at lowering your heart rate or blood pressure.
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Why this happens
Fibre supplements (like psyllium or methylcellulose) can act like a sponge in the stomach. They can bind to the bisoprolol or create a physical barrier that prevents the medicine from passing through the gut wall into your bloodstream.
What you should do
You do not need to stop taking fibre supplements, but you should separate the timing. Take your bisoprolol at least 2 hours before or 2 hours after taking your fibre supplement to ensure the medicine is properly absorbed.
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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.
25 Jan 2026 | Originally published

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