AKORN PROMETHAZINE CODEINE OPTIONS

, ritonavir) or discontinuation of a cytochrome P450 3A4 inducer such as rifampin, carbamazepine, and phenytoin, could lead to an increase in codeine plasma concentrations with subsequently higher metabolism by cytochrome P450 2D6, causing larger morphine stages, which could raise or lengthen adverse reactions and should cause probably fatal respir