Only 11 of the 89 registered 503B facilities compound tirzepatide at scale (FDA Outsourcing Facility Database, accessed April 2026)
Tell your provider what birth control you use, before you start tirzepatide
Some researchers follow 2-months-on, 1-month-off cycling patterns to prevent potential receptor downregulation
We asked Stuart Phillips, professor in the Department of Kinesiology, about the rise of unapproved peptides: the risks, evidence, challenges, and proven alternatives
There were 125,474 adults included in the study (mean age, 54.4 years
The range widens here because tirzepatide's GIP receptor activity adds weight loss effects that semaglutide doesn't have at any dose