Refrigeration

Hi! My son currently takes one dupixent injection a month. One of our injections was left in the box at room temp (below 77°) for 24 hours, so I popped it back in the fridge when I saw it was out. I just read that doing that is not recommended. I called Sanofi and they couldn’t give me any direct answers as to whether that syringe will still be okay for next month’s injection or why it wouldn’t be. I plan to call the pharmacy next, but does anyone have any experience with this? Thank you!