UTIs and Diarrhea: Understanding the Connection Wegovy Pen Guide and Dosing Information Wegovy (semaglutide) In a promising new study, the widely used weight loss drug tirzepatideknown commercially as Mounjaro for diabetes and Zepbound for obesityhas shown a surprising secondary benefit: shrinking breast cancer tumors in obese mice. Did you know that the main ingredient behind Ozempic works on a hormone your body already produces? It's called GLP 1 (glucagon like peptide 1) and it's made in your gut. Now, you may Mounjaro vs. Zepbound: Using Tirzepatide for Diabetes vs. Weight Loss GoodRx While announcing a deal to sell weight loss dr*gs for lower prices, Donald Trump claimed White House Communications Director Steve Cheung is taking Ozempic.