Answer
Keep them refrigerated in the original carton, protected from light, and do not freeze. A syringe may have a single room-temperature storage period under the conditions in the package leaflet and must not then be returned to the refrigerator.
Sources for this answer
- Zilbrysq 16.6 mg solution for injection in pre filled syringe — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.