Why are “substances with a similar chemical structure or biological effect” also prohibited in addition to those individually named in the new List?
A. Every attempt has been made to keep the List comprehensive, however some substances might structurally differ by maybe only a few atoms, from those individually listed, or others might have just as potent an effect as those listed. In order to keep a proposed list sensible, there has to be a fair recognition that such substances are prohibited substances as subsets of the listed substances. This is the WADA approach.