Six weight-loss drugs have been approved by the U.S. Food and Drug Administration (FDA) for long-term use: Bupropion-naltrexone (Contrave) Liraglutide (Saxenda) Orlistat (Xenical, Alli) Phentermine-topiramate (Qsymia) Semaglutide (Wegovy) Setmelanotide (Imcivree) Oct 29, 2022