Serotonin

• Another name for serotonin is 5-hydroxytryptamine (5-HT)
• Serotonin is produced by a small number of neurons found in the raphe nuclei of the brainstem
• A significant portion of serotonin targets the digestive tract
• Serotonergic neurotransmission is a common target of drugs used to treat anxiety and depression
• Hallucinogens such as LSD, MDMA, and psilocybin target the serotonin system
• Psilocybin is the active ingredient in "magic mushrooms"