is tirzepatide illegal now counterfeit weight loss drugs on the rise, as authorities struggle to keep up. A black market of fake and illicit versions of drugs used for weight loss, like Ozempic and Mounjaro, growing March 10, 2025: Patients transitioning

doi: 10.1016/j.cbi.2021.109781 128 IskenderHDokumaciogluESenTMInceIKanbayYSaralS

Several compounding pharmacy-affiliated clinics have published their microdosing protocols online, and while they vary in specifics, the general pattern is consistent: start lower, go slower, achieve similar long-term outcomes with better tolerability during the escalation phase

Because retatrutide has no approved form, compounding pharmacies cannot legally produce it under the exemptions that apply to approved medications like semaglutide or tirzepatide

Archived from the original on 5 December 2016

For the latter, the drugs do two things

In addition, the authors thank Lindsay Uglow of Spirit Medical Communications Group Limited for medical writing and editorial assistance (funded by Novo Nordisk A/S) and Christin Lth Hertz of Novo Nordisk for reviewing the manuscript