Signs & Symptoms of Vaping Singapore plans to list etomidate in vapes as illegal drug South China Morning Post Hong Kong Customs and Excise Department Press Release Hong Kong Customs detects three cases involving possession and trafficking of suspected "space oil drug" and other dangerous drugs by passengers (with photos) Etomidate, an anaesthetic agent that has been found in K pod vapes, will soon be made illegal in Singapore and listed as a Class C drug. Here's what you need to know about