Beyond the fact that that any drug-tested, Olympic related sport will bust an athlete for using them, Androstenedione in particular is so closely related to a steroid, that lab reports show that it will affect your internal hormonal ratios like a steroid. Also, there is no body of evidence to show that usage will not carry the same long-term side effects as any other steriod.
Younger athletes are especially at risk, since steroids have been shown to alter growth patterns.
Please, please be careful when considering what supplements you're going to take. Just because it's legal to buy does not mean that it's legal to take as a member of USA Powerlifting. The supplement market now forces us all to be knowledgeable on this subject. You may also call the USA Powerlifting National Office or Drug Testing Committee. We have been well received in the international community of powerlifting nations, and we look forward to being a vital cog in the wheels of powerlifting leadership.