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Drug Interactions between Evotaz and rizatriptan

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

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Interactions between your drugs

Minor

rizatriptan cobicistat

Applies to: rizatriptan and Evotaz (atazanavir / cobicistat)

Coadministration with rizatriptan may alter the plasma concentrations of drugs that are primarily metabolized by CYP450 2D6. Rizatriptan has been shown to be a competitive inhibitor of CYP450 2D6 in vitro, but only at high, clinically irrelevant concentrations and a clinically significant inhibitory effect on CYP450 2D6 has not been demonstrated in clinical drug interaction studies. Based on these observations, rizatriptan may be administered with CYP450 2D6 substrates without the need for increased clinical monitoring

References (5)
  1. (2025) "Product Information. Symbravo (meloxicam-rizatriptan)." Axsome Therapeutics, Inc.
  2. (2020) "Product Information. Rizatriptan Benzoate (rizatriptan)." Exelan Pharmaceuticals Inc
  3. (2025) "Product Information. Rizatriptan (rizatriptan)." Organon Pharma (UK) Ltd
  4. (2018) "Product Information. Rizatriptan (rizatriptan)." Accel Pharma Inc
  5. (2024) "Product Information. Rizatriptan ODT (WGR) (rizatriptan)." GM Pharma International Pty Ltd

Drug and food interactions

Moderate

atazanavir food

Applies to: Evotaz (atazanavir / cobicistat)

ADJUST DOSING INTERVAL: Administration of atazanavir with food enhances oral bioavailability and reduces pharmacokinetic variability. According to the manufacturer, administration with a light meal increased the peak plasma concentration (Cmax) and area under the concentration-time curve (AUC) of a single 400 mg dose of atazanavir by 57% and 70%, respectively, relative to the fasting state. Administration with a high-fat meal resulted in a mean increase of 35% in atazanavir AUC and no change in Cmax compared to fasting. The coefficient of variation of AUC and Cmax decreased by approximately one-half when given with either a light or high-fat meal compared to the fasting state.

MANAGEMENT: To ensure maximal oral absorption, atazanavir should be administered with or immediately after a meal.

References (1)
  1. (2003) "Product Information. Reyataz (atazanavir)." Bristol-Myers Squibb

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.

See also

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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.

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