Editor’s Note: This is an excerpt from WBUR’s weekly health newsletter, CommonHealth. If you like what you read and want it in your inbox, sign up here. GLP-1 drugs can seem like a miracle for anyone who’s struggled to lose weight. But they come with daunting side effects, such as nausea, vomiting, diarrhea, constipation and Ozempic face. What’s more, they don’t work for everyone. A new treatment promises even more weight loss power.