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Drug Interactions between pazopanib and talimogene laherparepvec

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

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Interactions between your drugs

Major

PAZOPanib talimogene laherparepvec

Applies to: pazopanib and talimogene laherparepvec

CONTRAINDICATED: Talimogene laherparepvec is a live, attenuated herpes simplex virus. Administration during immunosuppressant or intense antineoplastic therapy may be associated with a risk of potentially life-threatening disseminated herpetic infection due to enhanced virus replication in the presence of diminished immune competence. Patients may be immunosuppressed if they have recently received or are receiving alkylating agents, antimetabolites, radiation, some antirheumatic agents, high dosages of corticosteroids or adrenocorticotropic agents, or long-term topical or inhaled corticosteroids.

MANAGEMENT: Talimogene laherparepvec should not be used in patients receiving immunosuppressive therapy or cancer chemotherapy. Treatment with talimogene laherparepvec may need to be deferred until after such therapy is discontinued and the patient's immune system has sufficiently recovered.

References (1)
  1. (2015) "Product Information. Imlygic (talimogene laherparepvec)." Amgen USA

Drug and food interactions

Major

PAZOPanib food

Applies to: pazopanib

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of pazopanib. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruits. Although not studied, the interaction may increase the risk of QT interval prolongation and torsade de pointes arrhythmia as well as severe and fatal hepatotoxicity associated with the use of pazopanib.

ADJUST DOSING INTERVAL: Food increases the oral bioavailability of pazopanib. The mechanism of interaction is unknown. Administration of pazopanib with a high-fat or low-fat meal results in an approximately 2-fold increase in peak plasma concentration (Cmax) and systemic exposure (AUC).

MANAGEMENT: Patients treated with pazopanib should avoid consumption of grapefruit, grapefruit juice, and any supplement containing grapefruit extract. Pazopanib should be administered at least one hour before or two hours after a meal.

References (1)
  1. (2009) "Product Information. Votrient (pazopanib)." GlaxoSmithKline

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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