Sedative
A sedative or a tranquilizer was a drug used to calm down a patient or to induce sleep. Sedatives were often administered with a hypospray in a dosage of usually not more than several ccs.

In 2153, Doctor Phlox tried to give the Borg-assimilated Tarkalean male a sedative but was thrown over the bed after the Tarkalean injected him nanoprobes by using his assimilation tubules. ()

Aldebaran mud leeches could be used to treat insomnia as their secretions acted as a natural sedative. ()

In 2155 of the mirror universe, Doctor  used a sedative on a Tholian to keep it from making a transmission. When it stopped working, Captain Maximilian Forrest ordered him to kill it. ()

 gave  a mild sedative to alleviate the effects of the Melvaran mud flea vaccine: Kirk immediately fell into unconsciousness, which McCoy found "unbelievable". ()

Captain Picard's aunt 's recipe for a warm milk toddy was working perfectly as a natural sedative, as the heat activated amino acids in the lactose and it also tasted delicious. ()

In 2266, Doctor Leonard McCoy said  it took almost a triple dose of sedative to render Simon Van Gelder unconscious. ()

In 2369, Constable Odo told the Rakhari criminal Croden he would sedate him if he would not be quiet during their trip to Rakhar. ()

Makara herbs could act as an antidote to sedatives. While taking these herbs during her pregnancy, Major Kira Nerys was able to overpower Silaran Prin by pretending the sedatives he gave her worked. ()

In 2373, when Neelix was nervous about serving on an away mission to a Nezu colony planet, The Doctor picked up on his apprehension and suggested that he might need a tranquilizer. ()

That same year, when Ensign Harry Kim was attacked by a member of Species 8472, The Doctor tried giving him a sedative, but his body immediately rejected it, forcing Kim to endure extreme pain as his body was in essence "being eaten alive." ()

In 2374, Seven of Nine was placed under heavy sedation during the process of her body rejecting Borg implants. ()

In 2375, Tom Paris administered a sedative to Samantha Wildman for injuries she had sustained in the crash of the . ()

Later that year, Maxwell Burke was put under sedation after being brought aboard the . ()

Types 
 Ambizine
 Anesthizine
 Axonol
 Dylamadon
 Felicium
 Improvoline
 Kayolane
 Melorazine
 Merfadon
 Neuro-sedative
 Sonambutril
 Terakine
 Tetrovaline

External link 
 
 

de:Sedativum
Drugs
 
Sleep