You'll need to find a physician who will give it. Usually a pediatric endocrinologist, but check prior to seeing them so you don't waste your time. Some have very distinct ideas about the use of this drug. I was curious if it was also effected by other things. For example, how much you sleep, or some foods that you eat.
Growth hormone is secreted during deep sleep.
So, interruption of sleep can theoretically keep a child from reaching maximal height. Good nutrition, etc., and other factors will allow an individual to reach their maximal height. However, the maximal height seems to be genetically predetermined. Dwarfism is usually a genetic condition related to one of the chondrodystrophies such as achondroplastic dwarfism. This category included individuals with normal body proportions, but with the characteristic ocular or palate changes.