What is the difference between Mounjaro and Wegovy?

Wegovy is a once-weekly injection. The active ingredient is the medicine semaglutide and it is a GLP-1 based drug. That is because it works on GLP-1 hormone receptors. It is the same active ingredient as is in Ozempic. It is manufactured by Novo Nordisk. Mounjaro is also a once-weekly injection. The active ingredient is the medicine tirzepatide. It is also a GLP-1 based drug but it also works on the GIP (glucose-dependent insulinotropic polypeptide) receptors. It is manufactured by Eli Lilly.