There's no proof anywhere that it is effective improving athletic performance. Ziegenfuss' data will be presented at a conference in Finland in November, well after the home run chase is over. He and his partner are planning to study the long-term effects of androstenedione on the body. Some wonder if it won't come too late for McGwire and others who use it. Meanwhile, the producers of androstenedione aren't complaining about the McGwire debate.
Business is good.
Even if the substance really has no efficacy, people will want to check it out.