IntroductionDesvenlafaxine, marketed under the brand name Pristiq, is an antidepressant that belongs to the serotonin-norepinephrine reuptake inhibitor (SNRI) class. It is primarily prescribed for the treatment of major depressive disorder (MDD) but is sometimes used off-label for conditions like anxiety and menopausal symptoms. Since its approval by the FDA in 2008, desvenlafaxine has become a …