in rats , surgically anaesthetized with urethane , an increase in the depth of anaesthesia upon administration of ethyl carbamate ( urethane ) , pentobarbitone sodium ( nembutal ) , thiopentone sodium ( intraval ) , althesin , ketamine , trichloroethylene , halothane , methoxyflurane , diethyl ether , ethyl-vinyl ether , cyclopropane , enflurane or chloroform resulted in a dose-dependent increase in the latency , the decrease in the amplitudes of the initial positive and negative components of the short latency cortical response to electrical stimuli applied to the forepaw .
C0700349
pentobarbitone
C0702208
nembutal