Doses of Mounjaro, Lilly’s injectable diabetes drug containing exactly the same drug as Zepbound, tirzepatide, also are In a nutshell offer. As with Zepbound, 6 doses (with a similar values as Zepbound) are on the market and only the lowest 2.5 milligram dose is “readily available.” The FDA estimates shortages for both Mounjaro and Zepbound w