Zoloft is an antidepressant that is used to treat depression, anxiety and cost cephalexin without a prescription obsessive compulsive disorder. It is cost cephalexin without a prescription 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.