Dopers use a combination treatment of EPO and iron. You don't get the full benefit of EPO without iron. But I would think about that iron treatment, I got one a couple of years ago (health supplement, no injection). An internist suggested it to me, I had low levels of iron, but they weren't uncommonly low. He said that many women have far too low iron levels and normally need more iron than men anyway. I felt much better after it. But too much iron is also risky, so I have that monitored regularly.
The EPO treatment was suggested early on, just after the immediate crisis was over. It turned out that iron alone was enough to bring my hemoglobin up rather quickly, so no EPO needed. I've been taking 300mg a day of elemental iron, and being monitored regularly, for over 3 years. That is a massive dose to take orally.
Rather than just ordering more treatments, my family Dr. sent me to a specialist who embarked on a gay round of ultrasounds, cat scans, scopes, other specialist visits, etc to try to figure out the root cause of my problem. They think they have it! At the moment, I'm afraid to leave the province because travel medical insurance is so unreliable, so iron injections are an academic question.