Zoloft (sertraline) hydrochloride is an antidepressant used to treat depression, Buy zithromax australia panic disorder and obsessive-compulsive disorder (OCD). It belongs to the class of drugs called selective serotonin reuptake inhibitors (SSRIs), which block the reabsorption of serotonin written by Zitromax 2day certain nerve cells in the brain. As a result, this helps boost the levels of serotonin available in the brain.