, ritonavir) or discontinuation of the cytochrome P450 3A4 inducer which include rifampin, carbamazepine, and phenytoin, may well lead to an increase in codeine plasma concentrations with subsequently larger metabolism by cytochrome P450 2D6, causing increased morphine amounts, which could maximize or extend adverse reactions and could cause probably lethal https://marioyiige.eedblog.com/32353101/details-fiction-and-akorn-promethazine-codeine