I think this is what you're looking for:
STABILITY AND STORAGE
Vial and cartridge contents are stable for 28 days after initial use when stored at 2-8°C/36-46°F (under refrigeration). Avoid freezing the vial or the cartridge of Nutropin AQ. The vials and cartridges of Nutropin AQ are light sensitive and they should be protected from light. Store the vial and the cartridge refrigerated in a dark place when they are not in use.