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Can I take Propranolol and Ibuprofen together?

Drug interaction guide

Taking ibuprofen can make propranolol less effective at lowering your blood pressure. Additionally, using these two medicines together can increase the risk of kidney problems, especially if you are older or have existing kidney issues.

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Why this happens

Propranolol works by blocking certain receptors to lower blood pressure. Ibuprofen belongs to a group of drugs (NSAIDs) that cause the body to retain salt and water and can narrow blood vessels in the kidneys. These actions directly oppose the blood-pressure-lowering effects of propranolol.

If you only need a single dose of ibuprofen, the risk is low. However, if you need regular pain relief, speak to your doctor or pharmacist. They may suggest an alternative like paracetamol. If you must take both, monitor your blood pressure regularly and watch for signs of fluid retention, such as swollen ankles.

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Asthma or COPD

You must not take propranolol if you have asthma or a history of wheezing. It can cause a life-threatening narrowing of the airways (bronchospasm).

Do not take ibuprofen if you have asthma, as it can cause a life-threatening worsening of your breathing or a severe allergic reaction.

Stomach ulcers or gastritis

Do not take ibuprofen if you have ever had a stomach ulcer, perforation, or bleeding. It significantly increases the risk of serious internal bleeding.

Pregnancy (third trimester)

Do not take ibuprofen if you are more than 28 weeks pregnant. It can cause serious heart and kidney problems in the unborn baby and complications during birth.

Diabetes

Propranolol can hide the early warning signs of low blood sugar (hypoglycaemia), such as a fast heartbeat or tremors. You will need to monitor your blood sugar more closely.

Stopping treatment

Do not stop taking propranolol suddenly. Doing so can cause a dangerous rebound increase in blood pressure or worsen heart conditions. Your dose must be reduced gradually by a doctor.

Alcohol

Drinking alcohol while taking propranolol can increase the medicine's blood-pressure-lowering effect, which may make you feel dizzy or lightheaded. It is best to limit or avoid alcohol, especially when you first start treatment or if your dose is increased.

It is best to avoid or strictly limit alcohol while taking ibuprofen. Combining alcohol with non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen increases the risk of irritation to your stomach lining and can lead to stomach ulcers or bleeding.

Caffeine

Propranolol is often used to treat physical symptoms of anxiety or heart palpitations. Caffeine (found in coffee, tea, and energy drinks) is a stimulant that can increase your heart rate and blood pressure, potentially working against the effects of your medicine.

Food (General)

Propranolol can be taken with or without food, but you should be consistent. Taking it with food can increase the amount of medicine absorbed by your body. It is best to always take it the same way (either always with food or always without) to keep your blood levels steady.

It is recommended to take ibuprofen with food or a glass of milk to reduce the risk of stomach upset or indigestion.

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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.

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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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