Methylhexanamine should not be confused with isoflurane, a general inhalation anaesthetic, which has the proprietary name in Australia of Forthane.

Mice in which the TASK-3 gene has been deleted have reduced sensitivity to inhalation anaesthetics, exaggerated nocturnal activity and cognitive deficits as well as significantly increased appetite and weight gain.

A German toxicology professor who examined several German hostages said that their blood and urine contained halothane, a once-common inhalation anaesthetic which is now seldom used in Western countries, and that it was likely the gas had additional components.