The consequences of concomitant use or discontinuation of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with codeine are complex, requiring watchful thought of the effects around the mum or dad drug, codeine, and the active metabolite, morphine. Codeine may improve the neuromuscular blocking action of skeletal muscle relaxants https://promethazinewithcodeinefo15791.designertoblog.com/59397080/top-guidelines-of-promethazine-with-codeine