Tirzepatide is contraindicated in subjects with any history of medullary thyroid carcinoma, as the peptide has been found to cause thyroid C-cell tumors in rats
Medication comparison: If you've been considering both semaglutide and tirzepatide, your provider can walk you through the differences including efficacy data, cost, insurance coverage differences, and injection frequency (both are once weekly)
If the medication was exposed to temperatures above 86F for more than a few hours, or if it was left at room temperature for longer than the pharmacy-recommended 2128 days, its efficacy is likely compromised
Frequently Asked Questions What is Tirzepatide, and how does it work
doi: 10.3389/fragi.2025.1691007 Received 22 August 2025 Revised 30 October 2025 Accepted 06 November 2025 Published 27 November 2025 Volume 6 - 2025 Edited by Kieran Reid, Harvard Medical School, United States Reviewed by Shannon Hernon, Harvard Medical School, United States Nicole Bajdek, Harvard Medical School, United States Updates Copyright 2025 Dinkla, Beavers, Robbins, Akpalu, Wherry, Miller, Beavers, Espinoza, Trejo, Stepanenko and Cortes