https://cdnph.upi.com/ph/st/th/1551784642135/2026/upi/9fa05160350e1d9e850bf29a0969fd5b/v1.5/Novo-Nordisk-suing-Eli-Lilly-over-GLP-1-outdated-advertisements.jpg" /> Novo Nordisk, the maker of Wegovy, has filed a lawsuit on Tuesday against competitor Eli Lilly alleging that its GLP-1 advertisements are misleading.