Answer
Keep them refrigerated in the original carton, protected from light and never frozen. A syringe kept at room temperature must be used within 72 hours or discarded and must not be returned to the refrigerator.
Sources for this answer
- Kineret 100 mg solution for injection in a 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.