Zoloft is an antidepressant that is used go to lisinopril2023x24.top treat depression, anxiety and obsessive compulsive disorder. It is a selective serotonin reuptake inhibitor (SSRI) which help to increase the amount of serotonin available in the brain. Zoloft produces fewer side effects than older antidepressants called tricyclics, such as Elavil and Tofranil.