Maurice Raben took HGH from human pituitary glands to successfully treat a GH-deficient boy in the 1950's. The limited ability to treat children who experienced growth stunting began but problems continued as the main source of this was through a autopsies.
Then a synthetic formulation was made, which created controversy when it was not used for the original purpose, which was to treat children and a few other rare health conditions. Now hgh is still out there in some forms but is not from humans and is marketed as a way to prevent aging. Some people obtain it in an injectable form, of which concern regarding side effects has been raised. The FDA has not approved other medical use of human growth hormone other than to treat 7 specific medical conditions.