Posted By:
Max WederMany several posts ago, John Kal posted with a reference to Major League Baseball's drug policy in the early 90s. Here is a link to the policy:
http://www.businessofbaseball.com/docs/1991Memo_Baseballs_Drug_Policy_And_Prevention_Prog ram.pdf
The prohibition mentioned in the June 7, 1991 document applied to "all illegal drugs and controlled substances, including steroid or prescriptions drugs for which the individual in possession of the drug does not have a prescription".
I'm not sure if there were other policy statements that would modified or expand this.
Max