Weight-loss jab maker issues urgent warning over risks of ‘knockoff drugs’ The IndependentWhy compounded Mounjaro may be riskier than you think, especially if it contains B12 The South FirstMaker of Mounjaro warns of dangerous ‘chemical reactions’ in knock-off versions of weight-loss drug MSNAn open letter from Eli Lilly and Company warning of potential patient safety risks associated with tirzepatide compounded with vitamin B12 Eli Lilly and CompanyLilly Flags ‘Concerning’ Impurities in Compounded Tirzepatide BioSpace