<Tr> <Td> </Td> <Td> This article includes inline links to audio files . If you have trouble playing the files, see Wikipedia Media help . </Td> </Tr> <P> Thujone (/ ˈθuːdʒoʊn / (listen)) is a ketone and a monoterpene that occurs naturally in two diastereomeric forms: (−) - α - thujone and (+) - β - thujone . It has a menthol odor . Though it is best known as a chemical compound in the spirit absinthe, which contains only small quantities of thujone, it is unlikely to be responsible for absinthe's alleged psychedelic effects . Thujone acts on GABA as an antagonist (opposite to the effects of alcohol) and as a component of several essential oils, is also used in perfumery . </P> <P> In addition to the naturally occurring (−) - α - thujone and (+) - β - thujone, two other enantiomeric forms are possible: (+) - α - thujone and (−) - β - thujone: </P> <Ul> <Li> <P> (−) - α - thujone </P> </Li> <Li> <P> (+) - α - thujone </P> </Li> <Li> <P> (+) - β - thujone </P> </Li> <Li> <P> (−) - β - thujone </P> </Li> </Ul>

What is thujone and what does it do