Definition:
Selective Serotonin Reuptake Inhibitors (SSRIs) are a type of antidepressant drug.
Normally, the neurotransmitter serotonin is released by a nerve cell, then re-absorbed back into the same cell. The re-absorption is called "reuptake." SSRIs slow down reuptake, which makes the serotonin available to your brain for a longer period of time.
Studies show some people with fibromyalgia and chronic fatigue syndrome have low levels of serotonin, and SSRIs have been shown to help ease some symptoms of both conditions.
Examples of SSRIs are:
