Selective serotonin reuptake inhibitor

Selective serotonin reuptake inhibitors or SSRIs are a class of antidepressants]. They increase serotonin levels by blocking the brain's reabsorption of that neurotransmitter. Some SSRIs are also used to treat some other conditions, including some anxiety disorders.

Evidence
As of May 2018, the FDA has approved the following SSRIs to treat depression: Fluvoxamine (Luvox) is an SSRI approved to treat obsessive-compulsive disorder and is sometimes also used to treat depression.
 * Citalopram (Celexa)
 * Escitalopram (Lexapro)
 * Fluoxetine (Prozac)
 * Paroxetine (Paxil, Pexeva)
 * Sertraline (Zoloft)
 * Vilazodone (Viibryd)