, ritonavir) or discontinuation of the cytochrome P450 3A4 inducer including rifampin, carbamazepine, and phenytoin, could cause an increase in codeine plasma concentrations with subsequently higher metabolism by cytochrome P450 2D6, resulting in bigger morphine stages, which could raise or prolong adverse reactions and should bring about most likely fatal https://trevorpuspm.fitnell.com/73071310/the-akorn-codeine-diaries