▶ Key Takeaways Selective Serotonin Reuptake Inhibitors (SSRIs) are a class of medication that increases the amount of serotonin in the brain. Serotonin is the “feel-good” neurotransmitter; more serotonin available for signaling between neurons generally means a happier disposition. SSRIs are antidepressants used to treat anxiety and depression, but they are increasingly being prescribed to children who display unwanted behaviors …
