Wegovy vs Mounjaro vs Ozempic (2025): Which Weight Loss Pen Works Best? By 2025, Wegovy, Mounjaro, and Ozempic dominate the global medical weight-loss market.They’re the most prescribed GLP-1 receptor and dual-action (GIP/GLP-1) medications in the world, helping millions safely lose weight under doctor supervision. But which pen actually delivers the fastest, safest, and most sustainable…