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What are SSRIs?

Selective Serotonin Re-uptake Inhibitors act as antidepressants by inhibiting CNS (central nervous system) neuronal uptake of serotonin and blocking uptake of serotonin. The increased level of serotonin at neuroreceptors is believed to act as a stimulant and, therefore, counteracts depression. SSRIs are generally used to treat depression and obsessive-compulsive disorder.