Ritonavir or lopinavir/ritonavir considerably raise plasma concentrations of oxycodone in healthier human volunteers due to inhibition of CYP3A4 and CYP2D6.[fifty eight] Rifampicin enormously decreases plasma concentrations of oxycodone on account of solid induction of CYP3A4.Sadly, your browser will not be supported. Make sure you down load 1 of s… Read More