Serotonergic psychedelics (also known as serotonergic hallucinogens) are a class of hallucinogenic substances with a method of action strongly tied to modifying the normal neurotransmission of serotonin in the central nervous system (CNS).
Serotonin, which is also referred to as 5-HT (from its chemical name 5-hydroxy-tryptamine) is a naturally-occurring monoamine neurotransmitter which is tied to developmental, cardiovascular, gastrointestinal, and endocrine function, sensory perception, behaviors such as aggression, appetite, sex, sleep, mood, cognition, and memory, many of which have yet to be fully understood.[1]
https://psychonautwiki.org/wiki/Serotonergic_psychedelic
(2018, 08/15/2018). “Serotonergic psychedelic.” Retrieved 4/3/2019, 2019, from https://psychonautwiki.org/wiki/Serotonergic_psychedelic.