Does Wegovy need refrigeration and how long can it stay out of the fridge? Novo Nordisk storage rules for unopened and in-use pens, plus red flags.
Key points
- 01Unopened Wegovy pens are stored refrigerated (2 to 8 °C). Novo Nordisk's Instructions for Use describes storing unopened Wegovy pens refrigerated at 2 to 8 °C (36 to 46 °F) until first use. Keep the pens in the original carton to protect them from light.
- 02The time-out-of-fridge window for Wegovy is up to 28 days. Unlike the 56-day window on Ozempic, the Wegovy prescribing information describes storage at room temperature up to 30 °C (86 °F) for up to 28 days. After that, a pen must be discarded even if it still holds medication. Always verify the current package insert.
- 03Never freeze the pen. The prescribing information describes discarding a frozen Wegovy pen. Freezing alters the protein structure of semaglutide. Do not store the pen against the cold back wall or cooling element of the refrigerator, where it can freeze.
- 04Each Wegovy pen is single-dose. Because each Wegovy pen delivers one dose, the 28-day window applies to a pen taken out of the fridge and kept at room temperature before you use it. For the administration steps themselves, see the guide on how to inject Wegovy.
- 05Mark the date the pen first left the fridge. Because the room-temperature window starts at first removal, the Instructions for Use describes writing that date on the carton. This lets you identify the discard day reliably.
- 06Keep the pen below 30 °C and away from heat and light. The documented upper limit for room-temperature storage is 30 °C (86 °F). A car in summer sun, a windowsill, or an overheated hotel room can exceed it. Keep the pen in its original carton to shield it from light.
- 07Let a refrigerated pen warm before injecting. The Instructions for Use describes a refrigerated dose as more uncomfortable to inject. A room-temperature pen is associated with less stinging in the patient-education literature. About 30 minutes out of the fridge is enough.
- 08For travel, a simple cooling pouch is often enough. For trips inside the 28-day window, a cooling pouch is optional. For long ground time in hot climates, an evaporative pouch holds contents at roughly 18 to 26 °C. The flying with GLP-1 medications guide covers airport security and cooling cases.
Frequently asked questions
Does Wegovy need to be refrigerated?+
Unopened Wegovy pens are stored refrigerated at 2 to 8 °C (36 to 46 °F) per the prescribing information. Before use they may be kept at room temperature up to 30 °C for up to 28 days. Verify against the current package insert.
How long can Wegovy be left out of the fridge?+
The Wegovy prescribing information describes a window of up to 28 days at room temperature below 30 °C (86 °F). After 28 days a pen must be discarded even if it still holds medication.
Is the out-of-fridge window the same for Wegovy and Ozempic?+
No. Ozempic's label describes up to 56 days out of refrigeration; Wegovy describes up to 28 days, each at room temperature up to 30 °C. Unopened pens of both are stored refrigerated at 2 to 8 °C.
What happens if Wegovy was frozen?+
The prescribing information describes discarding a frozen pen; it must not be used. Freezing alters the protein structure of semaglutide. Do not store the pen against the cold back wall of the refrigerator.
Can I put Wegovy back in the fridge after it has been at room temperature?+
Yes, as long as the total time out of refrigeration stays within 28 days and the temperature stayed below 30 °C. The window counts cumulative time at room temperature, not each individual move.
