after stable discrimination performance was attained , stimulus generalization studies were conducted with another barbiturate ( barbital ) , benzodiazepine derivatives ( diazepam and chlordiazepoxide ) , pyrazolopyridine derivatives ( etazolate , cartazolate , and tracazolate ) , and a triazolopyridazine ( cl 218 , 872 ) .
C0004745
barbiturate
C0004743
barbital