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Can I take Garlic supplements and Losartan together?

Guide för läkemedelsinteraktioner

Taking garlic supplements with losartan may cause your blood pressure to drop lower than intended. This can lead to symptoms like dizziness, lightheadedness, or feeling faint, especially when standing up quickly.

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Varför detta händer

Both garlic and losartan work to lower blood pressure. Garlic has natural properties that relax blood vessels, which adds to the effect of the medication (an additive effect). Additionally, some studies suggest garlic might slightly interfere with the enzymes in the liver that process losartan, though the blood-pressure-lowering effect is the primary concern.

You should monitor your blood pressure regularly at home. If you feel dizzy or faint, contact your GP, as your dose of losartan may need adjusting. It is best to inform your doctor before starting any high-dose garlic supplements.

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Graviditet

You must not take losartan if you are pregnant or planning to become pregnant, as it can cause serious harm or death to an unborn baby, particularly during the second and third trimesters.

Surgery or dental procedures

Garlic can thin your blood and increase the risk of bleeding. You must stop taking garlic supplements at least 7 to 14 days before any planned surgery or dental work.

Taking blood-thinning medications (e.g., warfarin, clopidogrel)

Garlic supplements can significantly increase the effect of blood-thinning medicines, making you more likely to bruise or bleed dangerously.

Alkohol

It is best to avoid or strictly limit alcohol when taking garlic supplements. Both garlic and alcohol can have blood-thinning effects; combining them may increase your risk of bruising or bleeding. Additionally, alcohol can irritate the stomach lining, which may worsen the digestive side effects sometimes caused by garlic.

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

Potassium-rich foods (e.g., bananas, spinach, salt substitutes)

Losartan can increase the levels of potassium in your blood. You should avoid using salt substitutes containing potassium and speak to your doctor before significantly increasing your intake of potassium-rich foods, as high potassium levels can affect your heart rhythm.

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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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