glp 1 gip tirzepatide Retatrutide vs vs Semaglutide Understand GLP-1/GIP Dual Agonist Tirzepatide

Karan Chhabra, bariatric surgeon and senior study author

For semaglutide specifically, a 2025 preformulation study tested stability at 5C, 25C, 40C, 60C, and 80C and documented accelerated degradation at higher temperatures, supporting the practice of minimizing heat exposure and refrigerating whenever possible

doi: 10.1089/ars.2010.3697

After adjustment for age, sex, baseline BMI, baseline HbA1c, and hepatosteatosis grade, semaglutide remained independently associated with greater percentage weight loss at 6 months (adjusted = 6.16% points

Under the new deal, Americans will be able to buy Wegovy and Zepbound for $350 a month directly from manufacturers or TrumpRx.gov, a new site launching in January 2026

Patients experiencing these symptoms while taking tirzepatide should discontinue the medication and seek immediate medical attention