I was just 'fishing' on the internet and found this;
(Guardian online)

World Anti-Doping Agency issued a warning against its (GW1516) use. "Clinical approval has not and will not be given for this substance," it said. "The side-effect … is so serious that Wada is taking the rare step of warning 'cheats' to ensure that there is complete awareness of the possible health risks to athletes who succumb to the temptation of using (it) for performance enhancement."

"Despite Glaxo Smith Klein's decision to end their efforts to clear the drug for medical use, others are manufacturing it without medical clearance. A single click reveals GW1516 to be the third highest-selling product on one internet site, at $119 for a 150-mg bottle".

"The cyclists so far found to have used these rogue products are not famous. They are not even the sort of riders to be found at the back of the Tour de France peloton later this month".

Where will it end....
From http://www.guardian.co.uk/sport/blog/2013/may/31/epo-cycling-generation-...