Research Letter

Compounded GLP-1 Dispensing Patterns and Vitamin B12 Coformulation

JAMA 10.1001/jama.2026.21223

October 22, 2026 at 11:00 AM EDT

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This study uses comprehensive prescription drug monitoring program data to describe compounded weight-loss prescriptions, rates of self-payment, out-of-state dispensing, and the ingredients contained in compounded GLP-1s.

Corresponding Author: T. Joseph Mattingly II, PharmD, MBA, PhD, Department of Pharmacotherapy, University of Utah College of Pharmacy, 30 South 2000 East, Salt Lake City, UT 84112 (joey.mattingly@utah.edu).

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