Understanding the Promise and the Peril of GLP-1 Weight-Loss Drugs Glucagon-like peptide-1 (GLP-1) medications, including tirzepatide sold as Mounjaro, have surged in popularity for rapid weight loss. By helping control appetite and slowing stomach emptying, these drugs offer a shortcut some people find irresistible. Yet medical experts emphasize that no treatment is risk-free, and side…