Semaglutide targets the GLP-1 receptor, whereas tirzepatide activates both GLP-1 and GIP receptors
Studies show patients tend to lose more weight on this drug while patients on semaglutide hit a wall after six to eight months. Tirzepatide side effects may be worse Weight loss patients often complain about the side effects of GLP-1 medications
Display technologies enable high-throughput screening of diverse randomized peptide libraries 41 and human-proteome-derived libraries 42,43 but typically require purified protease, which can pose challenges for unstable or difficult-to-express protease variants
Richie is a professor of public health sciences and pharmacology at Penn State College of Medicine, State College, PA
References 1 KFF, November 2025 2 KFF, November 2025 3 Beth Israel Deaconess Medical Center, November 2024 4 Baylor Scott & White Health, May 2026 5 Tufts Medicine, August 2025 6 Cornell Chronicle, September 2025 7 Curion, March 2026 8 WSJ, GLP-1 Users Are Taking a Bite Out of the Restaurant Business, May 13, 2026 9 Northwestern Now, November 2024 10 Northwestern Now, November 2024 For more information, visit harmelin.com, or connect with us on LinkedIn or Facebook.