Drug Interaction Report

MONITOR: Coadministration with inhibitors of CYP450 2D6 and/or 3A4 may increase the plasma concentrations of cevimeline, which is metabolized by these isoenzymes.

MANAGEMENT: Dosage adjustments and clinical monitoring may be appropriate whenever a CYP450 2D6 and/or 3A4 inhibitor is added to or withdrawn from therapy. Patients should be advised to notify their physician if they experience excessive adverse cholinergic effects of cevimeline such as nausea, vomiting, diarrhea, sweating, salivation, urinary frequency, visual disturbance, confusion, tremor, palpitations, or irregular heartbeat.

Food does not appear to significantly affect the absorption and oral bioavailability of lurasidone. In twelve adult volunteers (6 men and 6 women), administration of a single 10 mg oral dose of lorcaserin following a high-fat (approximately 50% of total caloric content of the meal) and high-calorie (approximately 800 to 1000 calories) meal resulted in less than 10% increases in lorcaserin peak plasma concentration (Cmax) and systemic exposure (AUC) compared to administration in the fasted state. The time to reach peak concentration (Tmax) was delayed by approximately 1 hour in the fed state. Lorcaserin may be administered with or without food.