Can I take Danazol and Naproxen together?

Why this happens

Danazol can cause the body to hold onto salt and water (fluid retention), which is a side effect also shared by NSAIDs like naproxen. Additionally, danazol may interfere with the liver enzymes (CYP enzymes) that help break down naproxen, potentially leading to higher levels of the painkiller in your system.

What you should do

You can usually take these together, but you should monitor yourself for signs of fluid retention, such as swollen ankles or sudden weight gain. If you have existing heart, kidney, or liver problems, speak to your doctor before combining them. Always take naproxen with food to protect your stomach.

Important precautions

Pregnancy

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.

Do not take naproxen if you are more than 20 weeks pregnant. It can cause serious heart or kidney problems in the unborn baby and lead to complications during delivery.

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.

Asthma

Do not take naproxen if you have ever had an asthma attack, wheezing, or a rash triggered by aspirin or other non-steroidal anti-inflammatory drugs (NSAIDs).

Stomach ulcers or bleeding

Naproxen can cause serious stomach bleeding. Seek immediate medical help if you vomit blood or pass black, tarry stools. The risk is higher if you have a history of ulcers or are over 65.

Food and drink warnings

Alcohol

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.

It is best to avoid or strictly limit alcohol while taking naproxen. Both alcohol and naproxen can irritate the lining of your stomach; combining them significantly increases your risk of developing stomach ulcers or internal bleeding.

Food (General)

You should take naproxen with or just after a meal or a snack. This helps to protect your stomach lining and reduces the risk of indigestion or stomach pain.

Caffeine

Limit your intake of caffeine (found in coffee, tea, and some fizzy drinks) while taking naproxen. Both caffeine and naproxen can increase the amount of acid in your stomach, which may lead to indigestion or stomach pain.

Using other medicines

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.