A recent spate of people suffering near-fatal overdoses of the party drug GHB has prompted Melbourne doctors to issue a public warning about the illegal anaesthetic.
At least 10 people have presented at the emergency department of Melbourne's St Vincent's Hospital suffering GHB overdoses within the past two weeks, the hospital says.
Gammahydroxybutyric Acid, commonly referred to as GHB or fantasy, is a depressant with sedative effects.
Used as a date rape drug, it can quickly put users into a comatose state.
St Vincent's emergency department physician Dr Jonty Karro said at least five of the overdose patients that had presented at the hospital recently required critical care and could have died without timely treatment.
The hospital is issuing the warning ahead of the festive season and summer music festival season, including Melbourne's Stereosonic festival on Saturday.
Dr Karro said the recent spike in overdoses in Melbourne indicated that current batches of the drug may be stronger than usual or contain more harmful substances, which would likely lead to deaths.