A new look at antidepressants has changed the way doctors feel about the way these drugs work. While doctors usually advise that it can take a few weeks for a patient to note a difference in mood, this study shows that SSRI medications begin working within a matter of few hours.
SSRI is short for Selective Serotonin Reuptake Inhibitor. They work by preventing the brain from absorbing the neurotransmitter serotonin, improving mood in the meantime. Antidepressant brands like Paxil, Celexa. Zoloft, Lexapro, and Prozac are SSRI drugs.