It depends on the rider. If you're a low-profile rider, EPO is still number one. It's relatively cheap, simple to get, simple to use and simply the benchmark. More importantly, if you play it safe, the chances to get caught are small. It means not overdoing it, always before bedtime, and make sure it's never your first morning urine that gets tested (when they come in the morning, let your wife open the door, while you go to the toilet, then drink lots of water and wait for round two). If you don't and get unlucky, you'd probably end up like Frei, Sentjens and Galimzyanov.
If you're high-profile, you can't take that risk, but you may have the money and connections to get to one of the following products...
- AKB-6548
- PBI 1402
- ACE-011 (sotatercept)
These products are in the pipeline to become new medicines to treat (chronic) anemia. They are not on the market, not fully tested, studied and trialed, and not officially marked as (potential) PED's by WADA (yet)...