Timeline
2 pages in this section, most recently updated September 4, 2026.
- 01
FDA enforcement timeline for compounded GLP-1s and peptides, 2012 to 2026
Every dated FDA action we could tie to a primary FDA document: the 2012 outbreak that produced the law, the 2013 statute, the 2018 guidances, the 2023 salt-form letter, the shortage resolutions, the 2025 and 2026 warning-letter rounds, the counterfeit alerts and the 2026 bulks-list proposal.
Updated September 4, 2026
- 02
FDA's counterfeit Ozempic alerts: three lots, what was found, how to check a pen
December 2023, April 2025 and December 2025: the lot and serial numbers FDA published, what its analysis found, and the checks FDA and the manufacturer describe for telling a genuine pen from a counterfeit.
Updated September 4, 2026