Okay, just reconstituted and injected 250 iu of HCG with an insulin needle. I have a question, can I just leave the Mixed HCG in the vial I injected the bacteriostatic water into? or do I have to pull it out and insert it into an empty sterile vial? I do have 5 empty sterile vials but I just wasn't sure if it is absolutely necessary to store it in them or if i can just leave the reconstituted hcg in the vial it came in with the newly added bacteriostatic water.