In the study of inhalation induction, as end-tidal MAC fraction increased faster with xenon than with sevoflurane, xenon resulted in shorter inhalation induction than sevoflurane (71 seconds versus 147 seconds, p<0.05). In the study of emergence from anaesthesia, xenon took a shorter time (average 3.6 minutes, p<0.01) than nitrous oxide-sevoflurane or nitrous oxide-isoflurane, which took about two to three times the time of xenon. Emergence time was shown not to be affected by the duration of xenon anaesthesia while it was shown to become longer with a longer duration of nitrous oxide-isoflurane anaesthesia (r?2=0.54, p<0.001). In the study of mutual effects with another chemical, xenon was shown to have less effect in extending vecuronium-induced neuromuscular blockage than sevoflurane.