mavorixafor will raise the stage or influence of codeine by affecting hepatic enzyme CYP2D6 metabolism. Contraindicated. Mavorixafor (a robust CYP2D6 inhibitor) is contraindicated with medication which are very dependent on CYP2D6 for clearance.Sildenafil citrate is actually a form of drug referred to as a PDE5 inhibitor, which just means that it s