Within the Types dimension of Long-term Treatment Drugs for Obesity segmentation, five therapeutic classes dominate. GLP‑1 receptor agonists (e.g., semaglutide, tirzepatide) command the largest share, driven by robust efficacy data and expanding label indications. MC4R agonists (setmelanotide) occupy a niche, primarily serving rare genetic obesity phenotypes, yet they contribute high‑margin revenue. Pan‑creatic lipase inhibitors (orlistat) maintain a modest foothold, limited by gastrointestinal side‑effects but valued for over‑the‑counter accessibility. Combination therapies (e.g., phentermine/topiramate) leverage synergistic mechanisms to enhance weight loss, capturing mid‑range market share. Finally, Emerging mechanisms such as selective serotonin‑2C agonists and GIP/GLP‑1 dual agonists are in early commercial phases, poised to add incremental growth as clinical data mature. Each type’s contribution is quantified by efficacy, safety profile, and payer acceptance, collectively defining the market’s structural composition and future trajectory.