What is the storage guideline for Tirzepatide (Mounjaro®) KwikPen after first use?

• A. Store in fridge or at room temperature for up to 30 days.
• B. Store in fridge only.
• C. Store at room temperature only.
• D. Discard after 7 days.

Answer: (A)

After the first use, the Tirzepatide KwikPen can be stored either in the refrigerator or at room temperature, and it should be discarded after 30 days. This reflects stability data that allow the opened pen to remain potent for about a month as long as it’s kept away from extreme heat. The option provides flexibility for patients—whether they prefer refrigeration or keeping the pen at ambient temperature—while ensuring the medication stays effective throughout its 30-day window. Discarding after a shorter period, like 7 days, isn’t necessary, and restricting storage to only one setting isn’t required by the guidelines.