Recombinant human growth hormones are used to treat growth hormone deficiency in children and adults, along with other growth-related conditions in children. These hormones work by stimulating growth, cell reproduction, and cell regeneration in your body. These medications are available as injectables. Examples include somatropin (Omnitrope, Genotropin, Zomacton, more), Serostim (somatropin), and Skytrofa (lonapegsomatropin).