Retatrutide vs Tirzepatide vs Semaglutide (Ozempic): What's the difference?

Introduction The landscape of obesity treatment has evolved dramatically with the introduction of advanced medical therapeutics like retatrutide (RETA, LY3437943), tirzepatide, and semaglutide. These drugs, originally developed to manage type 2 diabetes, have shown remarkable efficacy in promoting weight loss, making them game-changers for obesity management. However, each drug has unique mechanisms, benefits, and potential applications, including emerging roles in cancer prevention. This article compares retatrutide, tirzepatide, and semaglutide, highlighting their differences in mechanism of action, weight loss efficacy, additional health benefits, and side effects to help patients and healthcare providers make informed decisions. Mechanism of Action Semaglutide : Semaglutide is a glucagon-like peptide-1 receptor agonist (GLP-1 RA). It mimics the action of GLP-1, a hormone that enhances insulin secretion, suppresses glucagon release, slows gastric emptying, and reduces appetite. Mar...