the same doses of pyrilamine , lidocaine and procaine had significantly less effects on a comparable beta adrenergic tachycardia produced by intravenous isoproterenol infusion ( 0.1-0.5 micrograms/kg/min i.v . ) after hexamethonium ( 10 mg/kg i.v . ) .
C0039231
tachycardia
C0022245
isoproterenol