How long can Visipaque (iodixanol) 320 mg I/ml solution for injection be stored at 37°C when protected from light?

Visipaque (iodixanol) 320 mg I/ml solution for injection in glass containers or 40, 50, 75, 100, 150, 175, 200 and 500 ml polypropylene bottles can be stored at 37°C for up to 1 month, protected from light, with the container kept in the outer carton.