Can I take Azathioprine and Montelukast together?

Why this happens

These drugs are processed by different pathways in the body. Azathioprine is an immunosuppressant mainly broken down by an enzyme called thiopurine methyltransferase (TPMT), while montelukast is a leukotriene receptor antagonist processed primarily by the liver's cytochrome P450 system. They do not interfere with each other's absorption, metabolism, or excretion.

You can take both medicines as prescribed by your doctor. However, as with any combination of treatments, you should monitor for any new or unusual side effects and report them to your GP or pharmacist. Always ensure your doctor is aware of all the medications you are taking.

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.