My prozinc opened bottle has remained refrigerated & says expires 4/18. I bought this in September 17. Would you still be able to use it? It looks fine, not cloudy. I have to do another test or 2 to be sure before starting her back on insulin tonight! I’m very sad about this. I know this is normal for everyone here, Baby went into remission after 7 weeks (aug17) & has been fine since! Here we go - my poor BGK, momma has to stick you again! any help is appreciated you guys! After 2 hr without food her bg was 349.