I did this for the very first time today. Here is how I did it....
My HCG is 5000iu.
I threw away the solvent they sent, and ordered bacteriostatic water and empty vials.
I broke the amp open with the powder and using a 22g 1 1/2" 3ml pin, drew 1 ml of bac water then added it to the powder in the amp. After that dissolved, I used the same pin to draw the solution out of the amp. If you pay attention to the angle on the end of the needle, you can get damn near every bit out. Then I injected it into a sterile vial. Then I drew up 4 ml more bac water total, and injected that into the vial. So for every cc(ml), i have 1000iu. Since I am using 1/2 cc
slin pins, I draw up 25 units and have 250 iu for 2x/wk injections.