Is there a particular reason you want to play with fire? EPO is illegal and dangerous - just as the cyclists that used it and ask about their dead competitors. Ask trainers who claimed blood doped horses how the horses never recovered or just up and died. Long term use produces death - first unthrifiness, then death, no mention of founder in anything I read, but the articles were pretty non-specific. The blood does become thick, very thick and cannot carry nutrients after a time and in many casees, never returns to normal. The fines for blood doiping can be tens of thousands of dollars and come with an instant life time suspension.
Procrit and Epogen were developed originally for people with pernicious anaemia and is still prescribed for that and similar diseases but not for long term use - the inserts are filled with warnings of caution against overdosing, side effects and contraindications. It may cause heart attack, stroke, clotting problems, thick blood, and a whole string of other complaints. There is a wealth of information on human use of the drugs, just takes a bit of digging. Like any other drug, it has its uses, but it is hard to take a human drug and translate the dosage and effects to a large animal. There IS a canine/feline version of EPO, but you still have to be careful administering the drug to the patient.
An older article from Monticello track http://www.recordonline.com/apps/pbcs.dll/article?AID=/20070218/SPORTS/702180350
Another frmo Thorougbred Times http://www.thoroughbredtimes.com/horse-health/2000/July/08/Deadly-performance-enhancer.aspx