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Can I take Carvedilol and Telmisartan together?

Drug interaction guide

Taking carvedilol and telmisartan together can cause your blood pressure to drop lower than intended. This may make you feel dizzy, lightheaded, or faint, especially when standing up quickly. It can also increase the levels of potassium in your blood.

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Why this happens

Both medicines work to lower blood pressure but in different ways. Carvedilol is a beta-blocker that slows the heart and relaxes blood vessels, while telmisartan is an angiotensin II receptor blocker (ARB) that prevents blood vessels from narrowing. When used together, their effects add up. Additionally, both drugs can affect how your kidneys handle potassium, potentially leading to high potassium levels (hyperkalaemia).

It is common for doctors to prescribe these together, but you should be monitored closely. Take your first doses at bedtime to avoid dizziness. Stand up slowly from a sitting or lying position. Your doctor will likely perform regular blood tests to check your kidney function and potassium levels. If you feel very dizzy, have a very slow heartbeat, or feel palpitations, contact your GP.

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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.

Article history

The information on this page is written and peer reviewed by qualified clinicians.

  • 14 Mar 2026 | Originally published
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