Mounjaro maker slams ‘knock-off’ GLP-1s over ‘safety risks’

Lilly said it discovered an impurity during testing of tirzepatide compounded with B12 (Shutterstock)
Darcy Jimenez

Read more by Darcy Jimenez

Darcy became managing editor at C+D in April 2026, after joining as a senior reporter the previous August. She has been a journalist for several years, writing news and features across a range of areas, including healthcare and the pharmaceutical industry.

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