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Drug Interactions between Xtandi and zaleplon

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

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Interactions between your drugs

Moderate

zaleplon enzalutamide

Applies to: zaleplon and Xtandi (enzalutamide)

Consumer information for this interaction is not currently available.

GENERALLY AVOID: Coadministration with potent inducers of CYP450 3A4 may significantly decrease the plasma concentrations of zaleplon. According to the prescribing information, CYP450 3A4 is a minor metabolizing enzyme of zaleplon. When zaleplon was coadministered with the potent CYP450 3A4 inducer rifampin (600 mg daily for 14 days), zaleplon plasma concentration (Cmax) and systemic exposure (AUC) decreased by approximately 80%. Reduced efficacy of zaleplon may occur.

MANAGEMENT: The use of zaleplon with potent CYP450 3A4 inducers should generally be avoided. An alternative sedative hypnotic agent that is not a CYP450 3A4 substrate may be considered in patients taking CYP450 3A4 inducers such as rifampin, phenytoin, carbamazepine, and phenobarbital.

References

  1. "Product Information. Sonata (zaleplon)." Wyeth-Ayerst Laboratories PROD (2001):

Drug and food interactions

Moderate

zaleplon food

Applies to: zaleplon

Taking zaleplon with a high-fat or heavy meal may delay the onset of sleep. For faster sleep onset, zaleplon should not be administered with or immediately after a high-fat or heavy meal. This will make it easier for your body to absorb the medication. You should avoid the use of alcohol while being treated with zaleplon. Alcohol can increase the nervous system side effects of zaleplon such as dizziness and drowsiness. Some people may also experience impairment in thinking and judgment. Talk to your doctor or pharmacist if you have any questions or concerns.

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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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