phenobarbital will lower the extent or result of diazepam buccal by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Watch. Sturdy or moderate CYP3A4 inducers may increase price of diazepam elimination; for that reason, efficacy of diazepam might be diminished.Barbiturates may well impair the psychological and/or Actual physical