How long does Tresiba last after opening?
Tresiba (insulin degludec) is intended for use as a once-daily insulin. After opening, its “in-use” shelf life depends on how it’s stored (refrigerated vs. at room temperature) and the product form.
What are the typical in-use timelines after opening?
Tresiba pens and vials generally have two different in-use limits:
- If kept refrigerated (not frozen), it can typically be used for longer.
- If kept at room temperature, it’s usually kept for a shorter period.
To give the exact number of days for your specific Tresiba product (FlexTouch pen vs vial, and the country’s labeling), check the package insert or the expiration/“in use” label printed by the pharmacy/manufacturer.
Does refrigeration after opening extend how long it lasts?
Yes. In-use stability is longer when the insulin is stored in the refrigerator, as long as it is not allowed to freeze and you keep it away from extreme heat. Storing at room temperature shortens the usable window.
What should I do if it has been left out?
If Tresiba was left out beyond the labeled room-temperature “in-use” time, it should not be used. When in doubt, follow the label and ask your pharmacist for the correct in-use guidance for your exact device.
Quick safety checks before each use
Even within the allowed in-use time, do not use Tresiba if it appears unusual for your product, has been frozen, or was exposed to high heat. If you’re unsure, a pharmacist can confirm what to do.
If you tell me your exact product, I can narrow it down
What form do you have (FlexTouch pen or vial), and has it been stored in the fridge or at room temperature since opening? I can then help you match it to the correct “in-use” duration.
Sources: None provided.