Utilization of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with Promethazine with Codeine Oral Remedy calls for careful consideration of the results on the parent drug, codeine, as well as the active metabolite, morphine.If adrenal insufficiency is diagnosed, address with physiologic substitution doses of corticosteroids. Wean t… Read More