Storage temp Novorapid (slin)

I've been searching the web and all I can find is that you need to keep this cool in the fridge but not frozen until you use it. And when it's opened you keep it outside the fridge. Now I have this Flexpen Novorapid lying around but it's been kept on room temp for about 2 months now, outside of sunlight and with the cap on, unopened. Is this stuff still good to go or degraded by now? I can imagine diabetics traveling with this would not be able to keep it at 5-8 celcius at all times?