Zoloft is an antidepressant that is used to treat depression, anxiety and cost of cheap xenical no prescription obsessive compulsive disorder. It is a selective serotonin reuptake inhibitor (SSRI) which help to increase the amount cost of cheap xenical no prescription serotonin available in the brain. Zoloft produces fewer side effects than older antidepressants called tricyclics, such as Elavil and Tofranil.