The Mitchell Report also stated that interviews were requested of five MLB players who had spoken out publicly on the steroid issue. Of these players, only one, Frank Thomas , was willing to be interviewed. The Mitchell Report stated that there was no evidence that any of these five had used performance-enhancing drugs. Curt Schilling , one of the four players who declined to interview with Mitchell, explained that he denied Mitchell's request because he "would have nothing to offer" Mitchell's investigation "other than personal opinion and hypotheticals." 
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.