EPO calculator
A hormone that stimulates red blood cell production, used to treat certain anemias. A prescription drug with serious risks in misuse.
Also known as: Erythropoietin, Epoetin alfa, Procrit, Epogen
FDA status — not an approved drug Erythropoietin (epoetin alfa and others) is FDA-approved as a prescription drug for specific anemias. It carries a boxed warning for increased risk of death, blood clots, and tumor progression, and it is prohibited in sport.
This draw does not fit the selected syringe.1000 units exceeds the 100-unit barrel. Choose a larger syringe, use less bacteriostatic water, or split the dose.
Schedule EPO → Set your dosing schedule and get a phone notification when each dose is due. Free.
What EPO is
EPO (erythropoietin) is a hormone that stimulates the bone marrow to produce red blood cells. It is an FDA-approved prescription drug for specific anemias, carrying a boxed warning for serious risks. It is notorious as a blood-doping agent in endurance sport, where it is prohibited and dangerous.
Research depth: 5/5 Approved for specific anemias with a boxed warning; dangerous and prohibited in sport. Human trials: Approved with boxed warning. This measures how much has been studied — counting animal and laboratory work — not whether it works for you.
How EPO works
It binds erythropoietin receptors on bone-marrow precursor cells, driving them to become red blood cells. More red cells carry more oxygen, which is the athletic appeal — but the resulting thicker blood raises the risk of stroke, heart attack, and clots. In cancer patients it can promote tumor growth, which is why it carries a boxed warning.
EPO side effects
Commonly reported
- Injection-site reactions
- Headache and fatigue
- Elevated blood pressure
- Joint aches
Serious — seek medical care
- Boxed warning: increased risk of death, blood clots, stroke, and tumor progression
- Dangerous blood thickening with misuse — linked to athlete deaths
- Prohibited in sport by WADA
This list is not exhaustive. Report anything unexpected to the clinician who prescribed it. If you have severe abdominal pain, trouble breathing, or signs of an allergic reaction, seek care the same day. See also our guide to peptide side effects by class.
A worked example
A 1 mg vial reconstituted with 1 mL of bacteriostatic water gives 1 mg/mL. A 10000 mcg dose is then 10 mL — about 1000 units on a 100-unit insulin syringe, giving roughly 0 doses per vial before accounting for residual volume left in the vial and syringe.
Prefer paper? Download the printable EPO dosing chart (PDF) — every vial size and water volume in syringe units, with the same review byline as this page. All charts →
Commonly cited dose range
Figures circulating for EPO run from 3000 mcg to 40000 mcg. Prescription dosing is in units of activity, individualized by a clinician with blood monitoring. Figures shown are reference points. Misuse for endurance enhancement is dangerous and prohibited.
Read this as reference information, not instruction. These numbers describe what is commonly discussed, not what is right for any individual. Dose, frequency, and whether to use EPO at all are decisions for a licensed clinician who knows your history.
Common questions
Is EPO dangerous to use for athletic performance?
Yes. EPO thickens the blood by raising red blood cell count, which increases the risk of stroke, heart attack, and dangerous blood clots. It has been linked to athlete deaths and is prohibited in sport by WADA.
What is EPO approved for?
Treating anemia in specific situations — chronic kidney disease, chemotherapy, and certain other conditions — under careful medical monitoring. It carries a boxed warning for serious cardiovascular and tumor risks.