I have ER/PR+/HER2- IDC and both my lifestyle integrative medicine doc and primary doctor were fine with the GLP-1 to help with my weight loss, so it is definitely worth a conversation with your docs. Lilly Direct does offer vials instead of the auto injectors at a better price-> https://www.lilly.com/lillydirect/medicines (still pricey but a bit more doable). Additionally I also found this clinical research trial out of Baylor University looking at this very topic to research the potential benefits of GLP-1 in reducing BC reoccurrence. https://pages.bswhealth.com/breast-cancer-study.html Best wishes on your journey!