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Drug Interaction Report

5 potential interactions and/or warnings found for the following 2 drugs:

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Interactions between your drugs

Major

sirolimus temsirolimus

Applies to: sirolimus, temsirolimus

Ask your doctor before using sirolimus together with temsirolimus. This can increase the effects of sirolimus. This can cause fever, chills, body aches, fast heart rate, breathing problems, cough, chest tightness, pale skin, easy bruising or bleeding, weakness, or pain or burning when you urinate. If your doctor prescribes these medications together, you may need a dose adjustment or special tests to safely use these medications together. 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.

Drug and food interactions

Moderate

sirolimus food

Applies to: sirolimus

Grapefruit and grapefruit juice may interact with sirolimus and could lead to potentially dangerous effects. Avoid eating grapefruit or drinking grapefruit juice while you are taking sirolimus. Also, you should preferably take sirolimus at least one hour before eating. If you do take it with food, you should take it each time with food to avoid changes in sirolimus levels. The oral liquid form of sirolimus must be mixed with water or orange juice only. Do not use grapefruit juice to mix this medication.

Moderate

temsirolimus food

Applies to: temsirolimus

If you are receiving therapy with temsirolimus you should avoid grapefruits and grapefruit juice. Grapefruit can raise the levels of temsirolimus in your body and lead to dangerous side effects. Do not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor.

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.

Duplication

Macrolide immunosuppressants

Therapeutic duplication

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

  • sirolimus
  • temsirolimus

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.

Duplication

MTOR inhibitors

Therapeutic duplication

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

  • sirolimus
  • temsirolimus

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.

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Further information

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

Medical Disclaimer