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Drug Interactions between azathioprine and mycophenolate mofetil

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs


azaTHIOprine mycophenolate mofetil

Applies to: azathioprine and mycophenolate mofetil

Ask your doctor before using azaTHIOprine together with mycophenolate mofetil. Using azaTHIOprine with mycophenolate mofetil can add to the side effects of either medication. Call your doctor at once if you have fever, chills, sore throat, body aches, weakness, muscle pain, easy bruising or bleeding, mouth sores, pale stools, darkened urine, or severe nausea, vomiting, and diarrhea. If you take both medications together, tell your doctor if you have any of these symptoms. You may need a dose adjustment or your blood pressure checked more often if you take both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Drug and food interactions

No alcohol/food interactions were found. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

Therapeutic duplication warnings

Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.


Immunity modifying agents

Therapeutic duplication

The recommended maximum number of medicines in the 'immunity modifying agents' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'immunity modifying agents' category:

  • azathioprine
  • mycophenolate mofetil

Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.