ProRx LLC in Exton, PA, is the most heavily sanctioned partner, with two FDA Warning Letters (March 2025 and April 2026), two voluntary sterile-product recalls covering compounded tirzepatide and semaglutide in August 2024 and October 2025, an open FDA 483 from September/October 2025, and an explicit FDA warning of possible seizure or injunction
The structural basis for this stability is not fully elucidated but may relate to its high proline content (3 consecutive Pro residues) which confers rigidity and protease resistance
[DOI] [PubMed] [Google Scholar] Moawad A.R., Xu B., Tan S.L., Taketo T
Shah, [email protected] Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers
Certain plans may require documentation of previous attempts to lose weight or evidence of obesity-related health concerns before approving support for GLP-1 therapy