Zepbound Cost 2026: $1,086 List + $25 Copay Savings Guide One month down! This stuff is amazing! : r Zepbound Compounded versions of tirzepatide (Mounjaro, Zepbound) containing vitamin B12 pose a potential safety risk to the public, Eli Lilly warned in an open letter on Thursday. Following laboratory testing, the drugmaker said GLP 1 medications like Ozempic and Zepbound have transformed treatment for Type 2 diabetes and obesity. But with those conditions often linked to cancer, an urgent question follows: Could these drugs also influence Zepbound (Tirzepatide) Side Effects: Common & Long Term