Ricasetron (Brl 46470) is a 5-HT3 receptor antagonist with pro-axonal lysis and antiemetic properties, and is used in the study of anxiety and anxiety disorders.

CP 96021 is a group of 5-HT1 receptors and 5-HT2 receptors antagonists that have anti-inflammatory properties and are non-non-self anti-ulcer compounds for the treatment of gastrointestinal tract and respiratory asthma.

5HT6-ligand-1是有效的 5-HT6 受体配体，与其结合的 Ki 值为1.43 nM。