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Can I take Allopurinol and Atenolol together?

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There is a potential for these two medicines to interact, which may lead to an increased risk of allergic reactions or a slight change in how your kidneys handle the medication. While most people take this combination without issues, there have been rare reports of serious skin rashes or hypersensitivity reactions when taking allopurinol alongside certain blood pressure medications like atenolol.

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You can usually take allopurinol och atenolo together, but you should be vigilant as there is a potential for these two medicines to interact.

Contact your doctor immediately if you develop a skin rash, hives, or any signs of an allergic reaction (such as swelling of the face or difficulty breathing). Your doctor may want to monitor your kidney function with routine blood tests.

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Varför detta händer

Both allopurinol and atenolol are cleared from the body through the kidneys. It is thought that taking them together might slightly alter how the kidneys process the drugs, or trigger an overactive immune response in sensitive individuals.

You may be experiencing an interaction between allopurinol and atenolol if:

  • You feel dizzy, lightheaded, or faint, especially when standing up.

  • You notice unusually slow heart rate or palpitations.

  • You experience tiredness, weakness, or fatigue.

  • You have shortness of breath or swelling in the ankles or feet.

  • You develop rashes, itching, or other allergic-type reactions.

  • Symptoms appear shortly after starting or adjusting the dose of either medicine.

Fortsätt läsa nedan

If you have any of the above symptoms, you should:

  • Contact your GP or pharmacist for advice as soon as possible.

  • Do not stop taking allopurinol or atenolol suddenly unless instructed by a healthcare professional.

  • Seek urgent medical help if you experience severe dizziness, fainting, or shortness of breath.

  • Tell your healthcare professional about all other medicines and supplements you are taking.

  • Attend any monitoring or blood tests recommended to check heart rate, blood pressure, or kidney function.

Asthma or COPD

Atenolol can cause severe breathing difficulties or trigger a life-threatening asthma attack, even if your condition is mild. You must not take this medicine if you have a history of asthma.

Severe skin rash

Stop taking allopurinol immediately and seek urgent medical help if you develop a skin rash, peeling skin, or mouth ulcers. This can be a sign of a rare but life-threatening allergic reaction.

Abrupt withdrawal

Do not stop taking atenolol suddenly. Doing so can cause a rapid heart rate, a sharp rise in blood pressure, or trigger a heart attack. Your dose must be reduced gradually under medical supervision.

Acute gout attack

Do not start allopurinol during a sudden gout attack, as it can make the pain worse. If you have an attack while already taking it, continue your regular dose but treat the pain separately.

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Alkohol

Alcohol can increase the levels of uric acid in your blood, making allopurinol less effective at preventing gout attacks. It is best to limit or avoid alcohol, especially beer and spirits.

It is best to avoid or strictly limit alcohol while taking atenolol. Alcohol can increase the blood-pressure-lowering effect of the medicine, which may make you feel dizzy, lightheaded, or faint, especially when standing up.

Orange and apple juice

Drinking large amounts of orange or apple juice may reduce the amount of atenolol absorbed by your body, potentially making it less effective. It is recommended to avoid drinking these juices in large quantities or to wait at least 2 hours between drinking them and taking your medicine.

Water / Fluids

It is important to drink plenty of fluids (at least 2 to 3 litres a day) while taking allopurinol. This helps to prevent the formation of kidney stones and ensures the medicine works correctly to flush uric acid from your system.

Taking multiple medicines? Our Interaktionskontroll för läkemedel 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.

Ansvarsfriskrivning

Denna information är endast avsedd för allmän utbildning och bör inte användas som en ersättning för professionell medicinsk rådgivning. Rådfråga alltid din läkare, apotekare eller annan kvalificerad vårdpersonal innan du fattar beslut om dina mediciner. Individuella omständigheter kan variera, och endast en vårdpersonal som känner till din medicinska historia kan ge personlig vägledning.

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Artikelhistorik

Informationen på denna sida är skriven och granskad av kvalificerade kliniker.

  • 25 jan 2026 | Ursprungligen publicerad
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