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Norvir Tablets and Xtandi

Determining the interaction of Norvir Tablets and Xtandi and the possibility of their joint administration.

Check result:
Norvir Tablets <> Xtandi
Relevance: 01.08.2022 Reviewer: Shkutko P.M., M.D., in

In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.

Consumer:

Consumer information for this interaction is not currently available.CONTRAINDICATED: Coadministration with drugs that are strong inducers of CYP450 3A4 may decrease the plasma concentrations of ritonavir and result in a potential loss of virologic response. The proposed mechanism is increased clearance due to induction of CYP450 3A4, which is the isoenzyme primarily responsible for the metabolism of ritonavir. MANAGEMENT: Given the risk of reduced viral susceptibility and resistance development associated with subtherapeutic antiretroviral drug levels, concomitant use of ritonavir with drugs that are strong inducers of CYP450 3A4 is considered contraindicated. References "Product Information. Norvir (ritonavir)." Abbott Pharmaceutical, Abbott Park, IL.

Professional:

CONTRAINDICATED: Coadministration with drugs that are strong inducers of CYP450 3A4 may decrease the plasma concentrations of ritonavir and result in a potential loss of virologic response. The proposed mechanism is increased clearance due to induction of CYP450 3A4, which is the isoenzyme primarily responsible for the metabolism of ritonavir.

MANAGEMENT: Given the risk of reduced viral susceptibility and resistance development associated with subtherapeutic antiretroviral drug levels, concomitant use of ritonavir with drugs that are strong inducers of CYP450 3A4 is considered contraindicated.

References
  • "Product Information. Norvir (ritonavir)." Abbott Pharmaceutical, Abbott Park, IL.
Norvir Tablets

Generic Name: ritonavir

Brand name: Norvir, Norvir Soft Gelatin

Synonyms: Ritonavir

Xtandi

Generic Name: enzalutamide

Brand name: Xtandi

Synonyms: n.a.

In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.

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