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Growth hormone treatment refers to the use of growth hormone (GH) as a prescription medication—it is one form of hormone therapy. Growth hormone is a peptide hormone secreted by the pituitary gland that stimulates growth and cell reproduction. In the past, growth hormone was extracted from human pituitary glands. GH is now produced by recombinant DNA technology and is prescribed for 'a variety of reasons'.  GH therapy has been a focus of social and ethical controversies for 50 years.

The New England Journal of Medicine published two editorials in 2003 expressing concern about off-label uses of HGH and the proliferation of advertisements for "HGH-Releasing" dietary supplements, and emphasized that there is no evidence that use of HGH in healthy adults or in geriatric patients is safe and effective - and especially emphasized that risks of long-term HGH treatment are unknown. One editorial was by Jeffrey M. Drazen, M.D., the editor-in-chief of the journal; the other one was by Dr. Mary Lee Vance, who provided the NEJM's editorial original, cautious comment on a much cited 1990 study on the use of HGH in geriatric patients with low growth hormone levels.

A small but controlled study of GH given to severely ill adults in an intensive care unit setting for the purpose of increasing strength and reducing the muscle wasting of critical illness showed a higher mortality rate for the patients having received GH. The reason is unknown, but GH is now rarely used in ICU patients unless they have severe growth hormone deficiency.

GH treatment usually decreases insulin sensitivity but some studies showed no evidence for increased diabetes incidence in GH-treated adult hypopituitary patients