The word "pituitary" refers to a small gland located in the brain, responsible for producing and releasing hormones that control various functions of the body. Full definition
More interestingly, dioscin has shown ability to stimulate growth hormone release in pituitary cells. (olympus-labs.com)
To get a diagnosis of low testosterone, you may need more than one early morning (7 — 10 AM) blood test and, sometimes, tests of pituitary gland hormones. (hormone.org)