Zoloft Zoloft (Sertraline HCl) is an antidepressant drug. It works by increasing the levels of serotonin in the brain. Pack contains: One pack of this medicine contains 30 tablets each of 50mg. It is also available in the 100mg tablets. Composition: Each film coated tablet contains: Sertraline HCl (Pfi) Equivalent to Sertraline 50mg. Pfizer Specs.… Continue reading Zoloft