Apparently, the steroid Raffy took is very easy to detect. So easy, in fact, that no known masking agent can cover it up. Also, -- It takes 6-8 weeks for the drug to have any effect -- It's very difficult to find in the US -- the pill form lingers in your body for up to a month, the injection for several months -- 11 of the 12 positive drug tests in MLB in 2004 tested positive for Stanzonol, probably because you can get strength from it, but it doesn't bulk you up. -- It's primarily used by vets to help large animals like horses recover from surgery. Athletes like it because it can help them prevent serious injury. http://news.yahoo.com/s/ap/20050804/ap_on_sp_ba_ne/bba_drugs_palmeiro