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Can I take Amlodopine and Simvastatin together?

Drug interaction guide

Taking these two medicines together can increase the amount of simvastatin in your blood. This makes you more likely to experience side effects, particularly muscle pain, tenderness, or weakness (a condition called myopathy). In rare cases, this can lead to a serious condition called rhabdomyolysis, which can cause kidney damage.

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Why this happens

Amlodipine interferes with a specific enzyme in your liver (called CYP3A4) that is responsible for breaking down simvastatin. Because the enzyme is busy dealing with the amlodipine, it cannot clear the simvastatin as quickly as usual, leading to higher levels of the statin in your body.

What you should do

You can take these medicines together, but your doctor must limit your dose of simvastatin. In the UK, it is recommended that patients taking amlodipine should not take more than 20mg of simvastatin daily. If you are currently prescribed a higher dose (such as 40mg or 80mg), speak to your doctor about adjusting your prescription. Seek medical advice immediately if you develop unexplained muscle pain or dark-coloured urine.

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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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