Drug Interaction Report

Theoretically, coadministration with inducers of CYP450 3A4 and/or P-glycoprotein (P-gp) may decrease the plasma concentrations of apixaban, which is a substrate of both the isoenzyme and the efflux transporter. When apixaban was coadministered with 600 mg/day of rifampin, a dual P-gp and potent CYP450 3A4 inducer, mean apixaban peak plasma concentration (Cmax) and systemic exposure (AUC) decreased by 42% and 54%, respectively. No data are available for use with other, less potent CYP450 3A4 and/or P-gp inducers.

GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of CNS-active agents. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.

MANAGEMENT: Patients receiving CNS-active agents should be warned of this interaction and advised to avoid or limit consumption of alcohol. Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.