is wegovy tirzepatide Semaglutide vs Tirzepatide: Which GLP-1 Wins for Weight Loss? Zepbound beats Wegovy for weight

3) were consistent with poorly differentiated sarcoma, with a spindle cell pattern, high cellularity, moderate atypia, fibrillar and edematous stroma, a mitotic index of 8 per 2 mm, diffusely positive CD34, diffusely positive monoclonal H3K27me3, Sox10-, S100-, Desmin-, and Myogenin-, suggesting a possible diagnosis of MPNST, especially if there are clinical signs of NF1-type genetic comorbidity

These data suggest that changes in mitochondrial structure and function induce a metabolic paradigm shift

2014 Mar;144(3):252-7

Technically, when the FDA first yanked tirzepatide off its shortage list in October 2024, both 503As and 503Bs could no longer legally make copycats (with one notable exception for the smaller 503As, who could still fill individual prescriptions if there was a medical reason the patient needed a slightly different version than the brand-name drugmore on this later)