| Term 
 | Definition 
 
        | 5HT 1A Agonist (via Gi). Anxiolytic. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | 5HT 1B/1D Agonist (via Gi). For migraines. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | 5HT 2A Antagonist (Gq ptwy). For carcinoid syndrome, 5HT syndrome, or cold-induced urticaria. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | 5HT 2A Antagonist (Gq ptwy). Also blocks alpha adrenoceptors. Blocks VSM contraction, platelet aggregation. (Anti-HTN in Europe). |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | 5HT3 Antagonist (Na/K channel). Prevents N&V after surgery and in chemotherapy. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | 5HT3 Antagonist (Na/K channel). Prevents N&V after surgery and in chemotherapy. |  | 
        |  |