and to sonoma, you will need more than 1 5000iu vial of HCG. You will need 10K or 15K ius.
irun it like gbart said, which equals 15K ius. Or use it for PCT, starting a day or so after your last shot and BEFORE nolvadex/clomid. 4 shots total of 3000ius, 3000ius, 1500ius, 1500ius...shots about 5 days apart. This is the older method.
BTW, hcg can aromatize so be looking out. I never had a problem with it though, but then again I dont usually use AI's or nolvadex during cycles