Mounjaro cost without insurance runs $987–$1,112/month at U.S. pharmacies in April 2026. The $25 savings card requires commercial insurance, and Lilly Direct's $499 self-pay price is for Zepbound, not Mounjaro. PlexusDx Tirzepatide Injection at $229–$309/month is a compounded cash-pay alternative using the same active ingredient.

The cheapest GLP-1 with insurance is roughly $25/month on Wegovy, Zepbound, Ozempic, Mounjaro, or Foundayo when your commercial plan covers the drug and you stack the manufacturer savings card. Only 43% of commercially insured users hit that scenario. When insurance won't cover a weight-loss GLP-1, PlexusDx cash-pay protocols start at $129/mo flat - cheaper than every branded self-pay route.