Well, you have the 5,000 I.U. and what I would do is get a sterile bottle and bacterostatic water- and put 10ml of water in the sterile vial and break open the two amps and mix together and draw up the HCG 5,000 I.U. then inject into the 10ml Vial of Bact. Water and mix it up nicely. That will yeild you 500 I.U. PER CC. Or you can use 5ml of water to yield 1000 I.U. per CC. Be sure to store the vial in the refridgerator between uses!