Hoppa till huvudinnehåll

Can I take Danazol and Metformin together?

Guide för läkemedelsinteraktioner

Danazol can make metformin less effective at lowering your blood sugar levels. This means your blood sugar might rise higher than usual while you are taking both medications.

Video picks for Läkemedelsinteraktioner

Fortsätt läsa nedan

Varför detta händer

Danazol is a synthetic steroid that can cause 'insulin resistance'. This means it makes your body's cells less responsive to insulin and can increase the amount of sugar your liver produces, which directly opposes the blood-sugar-lowering effects of metformin.

You should monitor your blood sugar levels more frequently than usual. If you notice your readings are consistently high, or if you experience symptoms of high blood sugar (such as feeling very thirsty, needing to urinate more often, or blurred vision), contact your doctor. They may need to adjust your metformin dose while you are taking danazol.

Fortsätt läsa nedan

Graviditet

You must not take danazol if you are pregnant or planning to become pregnant. It can cause the development of male physical characteristics in a female fetus. You must use effective, non-hormonal contraception (such as condoms) while taking it.

Blood clots (Thromboembolism)

Danazol significantly increases the risk of serious blood clots. Seek immediate medical help if you experience sudden leg swelling, chest pain, or shortness of breath.

Liver disease

Danazol can cause serious liver damage and non-cancerous liver tumours. You will need regular blood tests to monitor your liver function while taking this medicine.

Severe infection, dehydration, or high alcohol intake

Stop taking metformin and seek urgent medical help if you develop symptoms of lactic acidosis, such as severe vomiting, stomach ache, muscle cramps, or deep, rapid breathing. This is a rare but serious emergency.

Contrast dye scans (e.g., CT or X-ray)

You must tell your doctor you take metformin if you are having a scan involving an injection of 'contrast dye'. You will usually need to stop taking metformin 48 hours before and after the procedure to prevent kidney damage.

Alkohol

It is best to avoid or strictly limit alcohol while taking metformin. Drinking alcohol can increase the risk of a rare but serious condition called lactic acidosis (a build-up of lactic acid in the blood). It also increases the risk of low blood sugar (hypoglycaemia).

It is best to avoid or strictly limit alcohol while taking danazol. Combining danazol with alcohol can cause you to feel nauseous or short of breath (a disulfiram-like reaction). Additionally, both danazol and alcohol can put strain on your liver, and using them together increases the risk of liver damage.

Vitamin B12 absorption

Long-term use of metformin can prevent your body from absorbing enough vitamin B12 from your food. You may need to have your B12 levels checked by your doctor or take a supplement if you develop symptoms like extreme tiredness or a sore tongue.

Fortsätt läsa nedan

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.

Fortsätt läsa nedan

Artikelhistorik

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

  • 25 jan 2026 | Ursprungligen publicerad
flu eligibility checker

Fråga, dela, anslut.

Bläddra i diskussioner, ställ frågor och dela erfarenheter inom hundratals hälsorelaterade ämnen.

symptom checker

Känner du dig sjuk?

Bedöm dina symtom online gratis

Anmäl dig till Patientens nyhetsbrev

Din veckovisa dos av tydliga, pålitliga hälsoråd - skrivna för att hjälpa dig känna dig informerad, självsäker och i kontroll.

Vänligen ange en giltig e-postadress

By subscribing you accept our Sekretesspolicy. Du kan avsluta prenumerationen när som helst. Vi säljer aldrig dina uppgifter.