the 3h-noradrenaline pretreated , spontaneously beating , guinea-pig atrial preparation has been used as a model system to study the presynaptic and postsynaptic actions of selected drugs with stimulant ( bemegride , pentylenetetrazol , picrotoxin , strychnine and 4-methyl-4-n-propylpiperidine hydrochloride ) , depressant ( pentobarbitone , hydroxydione , trimethadione , 3-methyl-3-n-alkylglutarimide where alkyl = butyl , amyl or hexyl , 4-methyl-4-n-propylpiperidone-2 hydrochloride , chlordiazepoxide and chlorpromazine ) or dual stimulant-depressant ( 3-methyl-3-n-propylglutarimide and 5-ethyl-5- ( 1,3-dimethylbutyl ) barbiturate and its ( + ) and ( - ) enantiomers ) actions in the central nervous system of the mouse .
C0030883
pentobarbitone
C0004745
barbiturate