pentobarbital will minimize the extent or result of verapamil by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Observe.Barbiturates can induce hepatic microsomal enzymes causing greater metabolism and reduced anticoagulant response of oral anticoagulants (eg, warfarin, acenocoumarol, dicumarol, and phenprocoumon); individuals s… Read More