Zoloft (sertraline) is a drug used for treating depression, Antibiotics metronidazole anxiety and obsessive compulsive disorder. Launched in 1992 it has since been used in over 10.2 billion patient days of therapy. In clinical trials, Antibiotics metronidazole 50% of patients taking sertraline showed signs of improvement as opposed to a typical placebo response of 32% (mulrow).