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Definition of Androstenedione

Androstenedione: A pivotal adrenal steroid that is a precursor to testosterone and other androgens. Known popularly as andro. Has been used as a supplement to increase muscle strength. Taking andro raises testosterone levels above normal. Side effects include acne, male baldness, and a decrease in "good" cholesterol, which may predispose to cardiovascular disease.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=31441
Last Editorial Review: 3/12/2004

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