What is it? An anabolic/androgenic steroid altered to produce better muscle-building properties, making it very popular for bodybuilders.
How it’s taken: Tablets or injections
Brand names: Winstrol, although that brand is no longer in production in the United States.
Legalities: Regulated as a Schedule III drug, meaning a valid prescription is required for possession.
What it does: Promotes muscle growth. In the past, it has been prescribed for patients with osteoporosis, growth deficiencies and hereditary angioedema, a disease that causes swelling.
Side effects/risks: Oily skin, acne and hair loss. More severe risks include liver damage, cardiovascular strain, mood changes and hardening of the arteries.
In the news: Canadian sprinter Ben Johnson was stripped of his 1988 Olympic gold medal after testing positive for stanozolol.
Which made Canseco’s second benefactor — Mike Wallace — all the more important. John Hamlin, a producer at 60 Minutes , had gotten a tip about Canseco’s book from a friend at another network. (The friend couldn’t act on it because his employer was a Major League Baseball rights holder.) Hamlin began calling baseball people and confirming the details. Almost no one would talk on the record, but they suggested that Canseco’s account was true. One of the few allegations Hamlin couldn’t verify was Canseco’s insistence that Roger Clemens was juicing.