I know what the heck are they talking about. There isn't a steroid out that doesn't require and anti E I beleive. Would it even be possible. The only thing I could thing of is that genetics thing they were talking about on TV a while back. But people don't use it that I know of.
Anytime you use, it depletes your bodies natural production. If you went off and didn't have Clomid, Nolva, etc.... you'd be screwed.