Hong Kong Customs detects a case involving possession of suspected "space oil drug" by passenger (with photo) Vaping can lead to harmful addiction. Dangerous substances such as etomidate can be added into e vaporisers. The Government will be classifying etomidate as a Class C controlled drug under the Misuse No, Singapore's vape ban didn't cause the etomidate crisis Zombie cigarettes': Thai authorities warn of deadly drug laced vapes South China Morning Post