how do i keep hcg from going bad. i have glass amps 5000 i.u. i'll be doing 3000 i.u every five days for 2-3 weeks. what do i do with the left overs while i'm waiting to use it. can i put in a syringe and put it in the fridge till i use it again. will it go bad. any advice on different dosaging schedules or how to keep it fresh would be greatly appreciated. thanks. Madmax....