pentobarbital will minimize the extent or impact of maraviroc by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.pentobarbital boosts toxicity of ifosfamide by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Observe. CYP3A4 inducers may possibly boost the metabolism of ifosfamide to its Lively alkylat