Mounjaro 2.5 mg KwikPen Shelf Life: Unopened vs. Opened

The Mounjaro 2.5 mg KwikPen has a long shelf life when stored properly. Unopened pens can be kept refrigerated (2°C–8°C) until the expiration date on the box. Once opened or in use, the pen can be stored at room temperature (up to 30°C) for a maximum of 21 days. After 21 days, the pen should be discarded—even if it still contains medication—to ensure safety and effectiveness. Proper storage protects the stability of tirzepatide and ensure...  more