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Drug Interactions between Prezcobix 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 Prezcobix (cobicistat / darunavir)

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

darunavir food

Applies to: Prezcobix (cobicistat / darunavir)

ADJUST DOSING INTERVAL: Food enhances the absorption and oral bioavailability of darunavir administered in combination with low-dose ritonavir. The mechanism is unknown. When administered with food, the peak plasma concentration (Cmax) and area under the plasma concentration-time curve (AUC) of darunavir were approximately 30% higher than when administered in the fasting state. Darunavir exposure was similar for the range of meals studied. The total caloric content of the various meals evaluated ranged from 240 Kcal (12 grams fat) to 928 Kcal (56 grams fat).

MANAGEMENT: To ensure maximal oral absorption, darunavir coadministered with ritonavir should be taken with food. The type of food is not important.

References (1)
  1. (2006) "Product Information. Prezista (darunavir)." Ortho Biotech Inc

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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