Ketoconazole + Quetiapine Fumarate Interaction
Unknowninteraction on record
Description
ketoconazole, ritonavir) ( 7.1 , 12.3 ) Concomitant Use of Strong CYP3A4 Inducers: Increase quetiapine dose up to 5 fold when used in combination with a chronic treatment (more than 7 to 14 days) of potent CYP3A4 inducers (e.g. Quetiapine exposure is increased by the prototype CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, indinavir, ritonavir, nefazodone, etc.) and decreased by the prototype CYP3A4 inducers (e.g, phenytoin, carbamazepine, rifampin, avasimibe, St. CYP3A4 Inhibitors Coadministration of ketoconazole, a potent inhibitor of cytochrome CYP3A4, resulted in significant increase in quetiapine exposure.
Source: FDA drug label - quetiapine fumarate