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Drug Interactions between AccessPak for HIV PEP Basic and gilteritinib

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

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Interactions between your drugs

Moderate

tenofovir gilteritinib

Applies to: AccessPak for HIV PEP Basic (emtricitabine / tenofovir disoproxil) and gilteritinib

MONITOR: Coadministration with gilteritinib may increase the plasma concentrations and the risk of adverse effects of orally administered drugs that are substrates of the intestinal P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), and/or organic cation transporter 1 (OCT1) transporters, such as dabigatran, digoxin, rosuvastatin, methotrexate, and metformin. The proposed mechanism, based on in vitro data, is decreased clearance due to gilteritinib-mediated inhibition of intestinal P-gp, BCRP, and/or OCT1 efflux transport proteins.

MANAGEMENT: Until more information is available, caution is advised if gilteritinib is used concomitantly with drugs that are substrates of the intestinal P-gp, BCRP, and/or OCT1 transport proteins, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring should be considered whenever gilteritinib is added to or withdrawn from therapy with these drugs. Patients should be monitored for the development of adverse effects.

References (3)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. Cerner Multum, Inc. "Australian Product Information."
  3. (2018) "Product Information. Xospata (gilteritinib)." Astellas Pharma US, Inc

Drug and food interactions

Minor

tenofovir food

Applies to: AccessPak for HIV PEP Basic (emtricitabine / tenofovir disoproxil)

Food enhances the oral absorption and bioavailability of tenofovir, the active entity of tenofovir disoproxil fumarate. According to the product labeling, administration of the drug following a high-fat meal increased the mean peak plasma concentration (Cmax) and area under the concentration-time curve (AUC) of tenofovir by approximately 14% and 40%, respectively, compared to administration in the fasting state. However, administration with a light meal did not significantly affect the pharmacokinetics of tenofovir compared to administration in the fasting state. Food delays the time to reach tenofovir Cmax by approximately 1 hour. Tenofovir disoproxil fumarate may be administered without regard to meals.

References (1)
  1. (2001) "Product Information. Viread (tenofovir)." Gilead Sciences

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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