mavorixafor will improve the degree or result of codeine by affecting hepatic enzyme CYP2D6 metabolism. Contraindicated. Mavorixafor (a powerful CYP2D6 inhibitor) is contraindicated with drugs which might be very depending on CYP2D6 for clearance.Composition of Cough, The active material is codeine phosphate hemihydrate. Just about every ml of ora