Dopamine Agents. Neurotransmitter Agents. Molecular Mechanisms of Pharmacological Action. Serotonin 5-HT1 Receptor Agonists. ... Antidepressive Agents. Psychotropic Drugs. Antipsychotic Agents. Tranquilizing Agents. Central Nervous System Depressants. ... Serotonin Agents. Serotonin 5-HT2 Receptor Antagonists. Serotonin Antagonists. Dopamine D2 Receptor Antagonists. Dopamine ...