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Drug Interactions between lesinurad and Rapamune

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

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Interactions between your drugs

Moderate

sirolimus lesinurad

Applies to: Rapamune (sirolimus) and lesinurad

MONITOR: Coadministration with lesinurad may decrease the plasma concentrations of drugs that are sensitive CYP450 3A4 substrates. Lesinurad is a weak CYP450 3A4 inducer. In drug interaction studies conducted in healthy subjects, lesinurad reduced systemic exposure (AUC) to sildenafil and amlodipine, both CYP450 3A4 substrates, by approximately 30% to 40%. In contrast, lesinurad had no clinically significant effects on the pharmacokinetics of atorvastatin and colchicine, also CYP450 3A4 substrates.

MANAGEMENT: Patients receiving concomitant drugs that are sensitive CYP450 3A4 substrates or substrates with narrow therapeutic ranges should be monitored for potentially diminished therapeutic response to those drugs during treatment with lesinurad. Alternative treatments or dosage adjustments may be required if an interaction is suspected.

References

  1. "Product Information. Zurampic (lesinurad)." Astra-Zeneca Pharmaceuticals (2015):

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Drug and food interactions

Moderate

sirolimus food

Applies to: Rapamune (sirolimus)

ADJUST DOSING INTERVAL: Consumption of food can decrease the rate and extent of gastrointestinal absorption of sirolimus. Also, the consumption of grapefruit juice may result in increased sirolimus trough concentrations.

MANAGEMENT: Experts recommend that this drug be taken either at least one hour prior to eating or consistently with or without food to avoid variations in sirolimus blood levels. The manufacturer recommends against using grapefruit juice for dilution of sirolimus doses. Patients should be monitored for clinical and laboratory evidence of altered immunosuppressant effects.

References

  1. "Product Information. Rapamune (sirolimus)." Wyeth-Ayerst Laboratories PROD (2001):

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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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