Neil Merryweather - Kryptonite

Methaqualone is a sedative-hypnotic drug that is similar in effect to barbiturates, a general CNS depressant. Its use peaked in the 1960s and 1970s as a hypnotic, for the treatment of insomnia, and as a sedative and muscle relaxant. It has also been used illegally as a recreational drug, commonly known as Quaaludes (particularly in the 1970s in North America) or as Mandrax (methaqualone 250 mg combined with diphenhydramine 5 mg).

Link for Neil's record in comment!!