The 5-HT2 receptors are a subfamily of 5-HT receptors that bind the endogenous neurotransmitter serotonin (5-hydroxytryptamine, 5-HT).
[1] The 5-HT2 subfamily consists of three G protein-coupled receptors (GPCRs) which are coupled to Gq/G11 and mediate excitatory neurotransmission,[2] including 5-HT2A, 5-HT2B, and 5-HT2C.
For more information, please see the respective main articles of the individual subtypes: