Zoloft (sertraline) is a drug used Metronidazole dosage for bv treating depression, Metronidazole dosage for bv 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, 50% of patients taking sertraline showed signs of improvement as opposed to a typical placebo response of 32% (mulrow).