<unk> s <unk> s) are a class of drugs that are typically used as antidepressants in the treatment of major depressive disorder, anxiety disorders, and other psychological conditions.<unk> s increase the extracellular level of the neurotransmitter<unk>  by limiting its reabsorption (reuptake) into the presynaptic cell. They have varying degrees of<unk> ty for the other monoamine transporters, with pure<unk> s having strong affinity for the<unk>  transporter and only weak affinity for the norepinephrine and dopamine transporters.<unk> s are the most widely prescribed antidepressants in many countries. The efficacy of<unk> s in mild or moderate cases of depression has been disputed and may or may not be outweighed by side effects, especially in adolescent populations.
Selective serotonin reuptake inhibitor
Atypical antidepressant
Tricyclic antidepressant
Tetracyclic antidepressant
Heterocyclic antidepressant
Glycine reuptake inhibitor
Serotonin–dopamine reuptake inhibitor
Dopamine reuptake inhibitor