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Drug Interactions between atazanavir and tenofovir

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

  • atazanavir
  • tenofovir

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Interactions between your drugs


tenofovir atazanavir

Applies to: tenofovir and atazanavir

Using tenofovir together with atazanavir may alter the blood levels and effects of both drugs. Using these medications together may cause atazanavir to be less effective and increase the blood levels and effects of tenofovir. Contact your doctor if your condition changes or if you experience increased side effects such as kidney problems. Your doctor may be able to prescribe alternatives that do not interact or you may need a dose adjustment or more frequent monitoring to safely use 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


atazanavir food

Applies to: atazanavir

Food can enhance the levels of atazanavir in your body. To ensure maximal oral absorption, atazanavir should be administered with or immediately after a meal. This will make it easier for your body to absorb the medication.

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tenofovir food

Applies to: tenofovir

Consumer information for this minor interaction is not currently available. Some minor drug interactions may not be clinically relevant in all patients. Minor drug interactions do not usually cause harm or require a change in therapy. However, your healthcare provider can determine if adjustments to your medications are needed.

For clinical details see professional interaction data.

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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.