Dylamadon
Dylamadon was a sedative that could simulate death in an individual.

According to his medical file, Spock's physician recommended that he be treated with dylamadon, as well as axonol, melorazine, tetrovaline, and cortropine, when he had himself admitted to the psychiatric ward of Starbase 5. ()

In 2369, Counselor Deanna Troi was given dylamadon in order to trick Ves Alkar into breaking his detrimental psychological link with her. ()
Sedatives