unlike the anesthetic barbiturate pentobarbital and the anxiolytic pyrazolopyridine etazolate , which enhance [ 3h ] diazepam binding to rat brain membranes , the anticonvulsant barbiturates phenobarbital and metharbital , and also chlormethiazole , at therapeutic concentrations ( 10-1000 mum ) , do not stimulate [ 3h ] diazepam binding , but instead block the enhancement by both pentobarbital and etazolate .
C0004745
barbiturates
C0030883
pentobarbital