A useful hypnotic, particularly for elderly patients, because of its freedom from hangover effect. It is particularly beneficial in the acute withdrawal symptoms of alcoholism, and is used to treat status epilepticus. The drug’s sedative effects are an adjunct to regional anaesthesia and may also be of help in eclampsia. Dependence may occur occasionally and therefore the period for which the drug is used should be limited. Side-effects include sneezing, conjunctival irritation and occasional headache.