Speed was a stimulant.
While discussing how a synthetic mind meld augment prodedure might jolt an unconscious person awake, Paul Stamets described it as "a psychic hit of speed." Michael Burnham had been thinking more along the lines of an adrenaline shot, but agreed with this comparison as well. (DIS: "Lethe")
External link 
Edit
Community content is available under CC-BY-NC
unless otherwise noted.
