The details on the legal drug allegedly injected by Wheesung before he passed out in a bathroom have been revealed.

As previously reported, the 38-year-old singer was found unconscious in a building bathroom on March 31, and a plastic bag, syringes, and a bottle containing liquid were found on site. Wheesung, who is currently under investigation for the illegal use of Propofol, then underwent a drug test at the police station, but his urine was negative for illegal drugs.

According to reports on April 2, the alleged drug used by Wheesung before he passed out is etomidate (also marketed as Amidate), which is a short-acting intravenous anaesthetic agent. Etomidate is said to be similar in effect as Propofol, which has earned it the nickname "second Propofol," and it's described as a white, emulsified injection in a colorless, transparent ampule. If an overdose of etomidate is administered, side effects like low blood pressure and cortisol reduction can occur, which can lead to a loss of consciousness.

Though Propofol is classified as a narcotic, etomidate is designated as a specialist medicine, so there is no legal punishment for buyers. Data from the Ministry of Food and Drug Safety also reveals that imports of etomidate are rising every year.