GH is given as injections. It is given subcutaneously (below the skin) just as insulin is injected. Once a decision is taken to start GH, the endocrinologist will discuss various options: this will include liquid GH preparations and those with lyophilised powder which needs to be reconstituted before injection. Various kid friendly injection devices are available in the market. GH must be stored in the refrigerator between 2 and 8 degrees.
Despite being an injection, we have never seen kids refusing growth hormone after the initial few days.