What precisely would you like to know, related to HGH therapy ? Not the resident expert, but have personally used it. Pharmacy grade , US manufactured stuff.
I have never heard of any doctor recommending IM HGH injecting, some people do inject in spotty areas (back of arms, thighs) I was told lower abdomen, and thigh.
The general rule is for **normal** use, to treat a deficiency 1 iu per 100 lbs of body weight. Ratchet up the dose for desired results. On Tevtropin I have used that dosing schedule and although not drastic have lost about 11 lbs of bodyfat in 10 weeks with regular exercise. I sleep a bit better too.
I need to add, Its pricey as all hell. Weigh this out carefully, the price can get very high very fast when you add in the bacteriostatic water and needles.