, ritonavir) or discontinuation of a cytochrome P450 3A4 inducer for example rifampin, carbamazepine, and phenytoin, might bring about an increase in codeine plasma concentrations with subsequently better metabolism by cytochrome P450 2D6, causing higher morphine concentrations, which could improve or prolong adverse reactions and should bring about likely deadly https://springfield-armory02233.bloggerchest.com/32162135/a-review-of-akorn-codeine