The storage conditions are detailed on the packaging.
If necessary, the Nucala pre-filled pen can be removed from the refrigerator and kept in the unopened pack for up to 7 days at room temperature (up to 30°C), when protected from light. The pack should be discarded if left out of the refrigerator for more than 7 days.
The pre-filled pen must be administered within 8 hours once the pack is opened. The pack should be discarded if not administered within 8 hours.