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Drug Interactions between Orilissa and tenofovir disoproxil

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

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Interactions between your drugs

Moderate

tenofovir elagolix

Applies to: tenofovir disoproxil and Orilissa (elagolix)

MONITOR: Coadministration with elagolix may increase the plasma concentrations of drugs that are substrates of the P-glycoprotein (P-gp) transporter. The proposed mechanism is decreased clearance in the intestine, kidney, and/or liver due to inhibition of P-gp-mediated efflux by elagolix. When a single 0.5 mg dose of the probe P-gp substrate digoxin was coadministered with elagolix (200 mg twice daily for 10 days) in 11 study subjects, digoxin peak plasma concentration (Cmax) and systemic exposure (AUC) increased by 71% and 26%, respectively, compared digoxin administered alone.

MANAGEMENT: Caution is advised when elagolix is used concurrently with drugs that are P-gp substrates, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever elagolix is added to or withdrawn from therapy.

References (1)
  1. (2018) "Product Information. Orilissa (elagolix)." AbbVie US LLC

Drug and food interactions

Minor

tenofovir food

Applies to: 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.

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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