What is it? An anabolic steroid (a steroid that acts as the hormone testosterone) that occurs in small amounts in the human body.
Medical Use: Used to treat osteoporosis in postmenopausal women, to aid in the growth of blood cells in bone marrow, and to help tissue and muscle growth in people suffering from degenerative diseases like AIDS.
Athletic Use: To grow muscle mass and aid in physical recovery from workouts.
Possible Negative Side Effects: Cardiovascular damage, sexual dysfunction, liver damage, acne, sterility, baldness, enlarged prostate.
Is it legal? Available only by prescription.
In 2008, in the aftermath of the investigation, Conte produced a book BALCO: The Straight Dope on Barry Bonds, Marion and What We Can Do to Save Sports which was co-written with author Nathan Jendrick .  There had been a legal battle of defamation litigation regarding the book's publication by boxer Shane Mosley and it delayed the publication date.  Mosley dropped the lawsuit, but not before Skyhorse publishing had been scared away from publishing, the book is officially unpublished as 2017 but the unpublished manuscript has been made available.