Efficacy of Dextromethorphan-Bupropion Versus SSRIs in the Treatment of Major Depressive Disorder

The study aims to compare the antidepressant effects of a dextromethorphan-bupropion combination versus standard SSRI therapy in adult patients with major depressive disorder. Participants will be randomized into two groups: one receiving dextromethorphan-bupropion and the other receiving an SSRI (e.g., sertraline or escitalopram). Treatment will last for 6 weeks, with assessments at baseline and study completion. The primary outcome will be the remission rate measured by a validated depression rating scale. Secondary outcomes include change in depressive symptoms severity and safety/tolerability measures.