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Hormone therapy or hormonal therapy is the use of hormones in medical treatment. Treatment with hormone antagonists may also be referred to as hormonal therapy or antihormone therapy. The most general classes of hormone therapy are oncologic hormone therapy, hormone replacement therapy (for menopause), androgen replacement therapy (ART), and transgender hormone therapy.
- Hormone replacement therapy (HRT), also known as menopausal hormone therapy (MHT), is for women suffering from menopausal symptoms. It is based on the idea that the treatment may prevent discomfort caused by diminished circulating estrogen and progesterone hormones, or in the case of the surgically or prematurely menopausal, that it may prolong life and may reduce incidence of dementia. It involves the use of one or more of a group of medications designed to artificially boost hormone levels. The main types of hormones involved are estrogen, progesterone, or progestins, and sometimes, testosterone. It is often referred to as "treatment" rather than therapy.
- Androgen replacement therapy (ART) in males with low levels of testosterone due to disease or aging. It is a hormone treatment often prescribed to counter the effects of male hypogonadism or who for men who have lost their testicular function to disease, cancer, or other causes. It is sometimes used for late-onset hypogonadism (so-called "andropause"), but the significance of a decrease in testosterone levels is debated and its treatment with replacement is controversial. The Food and Drug Administration (FDA) stated in 2015 that neither the benefits nor the safety of testosterone have been established in older men with low testosterone levels.
- Transgender hormone therapy for transgender people introduces hormones associated with the gender that the patient identifies with (notably testosterone for transgender men and estrogen for transgender women). Some intersex people may also receive HRT. Cross-sex hormone treatment for transgender individuals is divided into two main types: feminizing hormone therapy and masculinizing hormone therapy.
- Hormone replacement therapy for people with hypogonadism and intersex conditions (e.g., Klinefelter syndrome, Turner syndrome)
- Hormonal therapy for cancer
- Chemical castration of men or sex offenders with paraphilias or hypersexuality
- Growth hormone therapy for growth hormone deficiency
- Thyroid hormone replacement in hypothyroidism
- Antithyroid therapy in hyperthyroidism
- Glucocorticoid and/or mineralocorticoid replacement in conditions such as Addison's disease
- Antiglucocorticoid therapy in Cushing's syndrome
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- Kang, DY; Li, HJ (January 2015). "The effect of testosterone replacement therapy on prostate-specific antigen (PSA) levels in men being treated for hypogonadism: a systematic review and meta-analysis". Medicine. 94 (3): e410. doi:10.1097/MD.0000000000000410. PMC 4602637. PMID 25621688.
- Giwercman, A; Lundberg Giwercman, Y (2015). "Hypogonadism in young men treated for cancer". Hormones (Athens, Greece). 14 (4): 590–7. doi:10.14310/horm.2002.1650. PMID 26859600.
- Staff (3 March 2015). "FDA Cautions About Using Testosterone Products for Low Testosterone Due to Aging; Requires Labeling Change to Inform of Possible Increased Risk of Heart Attack And Stroke". FDA. Retrieved 5 March 2015.. NEJM Perspective piece: Nguyen, CP; et al. (20 August 2015). "Testosterone and "Age-Related Hypogonadism"--FDA Concerns". The New England Journal of Medicine. 373 (8): 689–91. doi:10.1056/nejmp1506632. PMID 26287846.. Popular summary: Tavernise, Sabrina (March 3, 2015). "Drugs Using Testosterone Will Label Heart Risks". New York Times. Retrieved March 19, 2015.