May enhance effect of certain antihypertensives. Use w/ caution in combination w/ alcohol or other CNS medicinal products w/ overlapping adverse reactions eg, sedation; medicinal products known to cause QT prolongation or electrolyte imbalance. Increased AUC w/ quinidine & other CYP2D6 potent inhibitors eg, fluoxetine & paroxetine. Increased AUC & C
max w/ ketoconazole & other CYP3A4 strong inhibitors eg, itraconazole & HIV PIs. Modest increases in plasma conc may be expected w/ weak inhibitors of CYP3A4 (eg, diltiazem) or CYP2D6 (eg, escitalopram). Lower geometric means of C
max & AUC w/ carbamazepine & other CYP3A4 inducers eg, rifampicin, rifabutin, phenytoin, phenobarb, primidone, efavirenz, nevirapine & St. John's wort. Cases of serotonin syndrome w/ other serotonergic medicinal products (eg, SSRI/SNRI) or medicinal products known to increase aripiprazole conc.