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Can I take Allopurinol and Ramipril together?

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Taking these two medicines together can increase the risk of a serious allergic reaction or a drop in white blood cell counts, which helps your body fight infections. It may also increase the risk of a sudden drop in blood pressure or kidney problems.

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Varför detta händer

Both medicines can affect the immune system and how the kidneys filter waste. When used together, they can cause the body to overreact (hypersensitivity) or slow down the production of blood cells. Additionally, allopurinol may slightly increase the levels of ramipril in the blood.

You can take these together, but your doctor should monitor you closely, especially when starting the treatment or changing doses. Seek medical help immediately if you develop a skin rash, hives, swelling of the face or throat, or a fever. Your doctor may perform regular blood tests to check your kidney function and blood cell counts.

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Graviditet

You must not take ramipril if you are pregnant or planning to become pregnant. It can cause serious harm, including kidney damage and skull deformities, to a developing baby, especially during the second and third trimesters.

Severe Skin Rash

Stop taking allopurinol and seek urgent medical help if you develop a skin rash, peeling skin, or mouth sores. This can be a sign of a rare but life-threatening allergic reaction. The risk is higher in people of Han Chinese, Thai, or Korean descent.

Angioedema (Swelling) - ramipril

Seek immediate medical attention if you experience swelling of the face, lips, tongue, or throat. This is a serious allergic reaction called angioedema which can block your airway.

Alkohol

It is best to avoid or strictly limit alcohol while taking allopurinol. Alcohol increases the levels of uric acid in your blood, which can trigger a gout attack and make the medicine less effective. Additionally, combining alcohol with allopurinol can increase the risk of liver damage.

Alcohol can increase the blood pressure-lowering effect of ramipril, which may make you feel dizzy, lightheaded, or faint, especially when you first start taking the medicine or when your dose is increased. It is best to avoid or strictly limit alcohol.

Salt substitutes (Potassium-based)

Ramipril can increase the levels of potassium in your blood. Many salt substitutes (such as Lo-Salt) contain potassium chloride. Using these while taking ramipril can lead to dangerously high potassium levels (hyperkalaemia). You should avoid using potassium-based salt substitutes.

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.

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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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