Pristiq is an antidepressant medication available in tablet forms of 25mg, 50mg, and 100mg. Its active ingredient, desvenlafaxine, effectively treats major depressive disorder by enhancing mood, increasing overall well-being, raising energy levels, and alleviating symptoms of anxiety and depression. Pristiq works by restoring the balance of natural chemicals in the brain, specifically serotonin and norepinephrine. It is also marketed under the names D-Venlor, MDD, Ventab DXT, and D-Veniz, providing versatile options for managing depression globally.