Using the Wegovy pen Wegovy (semaglutide) Injection 2.4 mg Those who take tirzepatide, the drug sold as Zepbound and Mounjaro, could lose more weight than those who take semaglutide, known as Ozempic and Wegovy, according to new research. Weight loss drugs like Mounjaro (Tirzepatide) and Wegovy (Semaglutide) are changing the way we approach obesity management. But patients often ask: How do these medicines work? Who should use them, Do Zepbound medications worsen migraines? Zepbound for Weight Loss: Uses, Side Effects, Cost and More