Desflurane is a new volatile anaesthetic agent, with qualitative physi
ological and pharmacological effects similar to those of previously av
ailable drugs of this type. The feature that sets desflurane apart fro
m other halogenated, volatile anaesthetics is its low solubility in bl
ood and body tissues. Therefore, its uptake, distribution and eliminat
ion are more rapid than those for similar drugs. Desflurane undergoes
negligible metabolism, and should have a low potential for producing t
oxic effects. Because it has a high vapour pressure desflurane needs a
special delivery system, a heated, pressurised vaporiser. Its low sol
ubility gives it the ability to produce rapid alterations in depth of
anaesthesia and rapid emergence and recovery from anaesthesia.