Storage conditions of Fam-trastuzumab deruxtecan-nxki

Store Fam-trastuzumab deruxtecan-nxki vials in the original carton in a refrigerator at 2-8°C (36-46°F), protected from light, until reconstitution. Do not freeze. Do not shake reconstituted or diluted solutions. If not for immediate use, store reconstituted trastuzumab at room temperature for 4 hours, including preparation and infusion, or in a refrigerator at 2-8°C (36-46°F) protected from light for 24 hours. Do not freeze. Discard any unused portion remaining in the vial. The prepared infusion solution is then stored refrigerated (2-8°C [36-46°F]), allowing the solution to reach room temperature before administration. Cover the infusion bag to protect it from light.