I am newbie so I don't know anything. But according to this article :
"Mircera (PEG-EPO) belongs to a category of drugs called Continuous Erythropoeitin Receptor Activators or CERA because it continuously interacts with the EPO receptor producing longer lasting effects. Only 1-2 monthly injections of Mircera have similar results to three times weekly injections of Epogen.
Cyclist Riccardo Ricco of the Saunier Duval-Scott professional cycling team was the first athlete to test positive for the new performance enhancing drug Mircera. His 'A' sample tested positive for metabolites of Mircera on July 17, 2008 at the 2008 Tour de France. "
Has anyone check the health of Riccardo lately?
He is apparently fine and has returned to competitive cycling.