Leuprolide is used to treat advanced prostate cancer. It is not a cure. Most types of prostate cancer need the hormone testosterone to grow and spread. Leuprolide works by reducing the amount of testosterone that the body makes. This helps slow or stop the growth of cancer cells and... Leuprolide is also used to stop early puberty (precocious puberty) in children. It helps to delay sexual development (such as growth of the breasts/testicles) and the start of menstrual periods. It also helps slow down early bone growth to increase the likelihood of reaching normal adult height. Leuprolide works by decreasing the amount of sex hormones that a child's body makes (estrogen in girls, testosterone in boys). View More Info

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