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Drug Interactions between atazanavir / cobicistat and resmetirom

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

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Interactions between your drugs

Moderate

atazanavir resmetirom

Applies to: atazanavir / cobicistat and resmetirom

GENERALLY AVOID: Coadministration with inhibitors of the hepatic uptake transporters organic anion transporting polypeptides (OATP) 1B1 and/or OATP 1B3 may increase the plasma concentrations of resmetirom, which has been shown to be a substrate and inhibitor of these transporters in vitro. This may increase the risk and/or severity of resmetirom-related adverse effects (e.g., hepatotoxicity, gallbladder-related adverse reactions, diarrhea, nausea, pruritus, vomiting, constipation, abdominal pain, dizziness); however, clinical data are not available.

MANAGEMENT: According to the manufacturer of resmetirom, concomitant use with inhibitors of OATP 1B1 and/or OATP 1B3 should generally be avoided.

References (1)
  1. (2024) "Product Information. Rezdiffra (resmetirom)." Madrigal Pharmaceuticals, Inc.
Moderate

cobicistat resmetirom

Applies to: atazanavir / cobicistat and resmetirom

GENERALLY AVOID: Coadministration with inhibitors of the hepatic uptake transporters organic anion transporting polypeptides (OATP) 1B1 and/or OATP 1B3 may increase the plasma concentrations of resmetirom, which has been shown to be a substrate and inhibitor of these transporters in vitro. This may increase the risk and/or severity of resmetirom-related adverse effects (e.g., hepatotoxicity, gallbladder-related adverse reactions, diarrhea, nausea, pruritus, vomiting, constipation, abdominal pain, dizziness); however, clinical data are not available.

MANAGEMENT: According to the manufacturer of resmetirom, concomitant use with inhibitors of OATP 1B1 and/or OATP 1B3 should generally be avoided.

References (1)
  1. (2024) "Product Information. Rezdiffra (resmetirom)." Madrigal Pharmaceuticals, Inc.

Drug and food interactions

Moderate

atazanavir food

Applies to: 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.

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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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