PegMGF Shelf Life

Does anyone know what the shelf life of PegMGF is once it’s been reconstituted with NaCl, and if it should be refrigerated?

If I remember correctly its only IGF-1 that should be refrigerated and I am not sure the shelf life of it. I put it in the fridge with my IGF just to be on the safe side.

Thanks. I suppose all I really need to know is if it will last for at least 4 weeks or so once reconstituted.