Calgesic
From Tardis Wiki, the free Doctor Who reference
Calgesic was a drug which induced unconsciousness, used by the natives of the Third Zone. In 1985, Shockeye, as instructed by Chessene, added calgesic to the dinner he served to the scientists of Space Station Camera, allowing the Sontarans to attack the station with little resistance. (TV: The Two Doctors)
