Erythropoietin (EPO)
FDA APPROVED
Extensively Studied
Metabolic
Erythropoietin (EPO)
0
Amino acids
Molecular weight
Peptide
Type
Erythropoietin (EPO) is an essential glycoprotein hormone that stimulates red blood cell production. Naturally produced by the kidneys in response to low oxygen levels, recombinant human EPO is FDA-approved for treating anemia in chronic kidney disease and chemotherapy patients. EPO binding to receptors on bone marrow cells promotes survival and maturation of red blood cell precursors, increasing oxygen-carrying capacity. Due to performance-enhancing effects, it is banned in competitive sports.
Top researched benefits
Overview of Erythropoietin (EPO)
EPO binds to erythropoietin receptors (EPOR) on erythroid progenitor cells in bone marrow, activating three interconnected signaling pathways: JAK2/STAT5, PI3K/AKT, and RAS/MAPK. This promotes survival of red blood cell precursors by protecting them from apoptosis, accelerates proliferation and differentiation of erythroid cells, and increases hemoglobin production. Under hypoxic stress, endogenous EPO production can increase up to 1000-fold, demonstrating the body's powerful oxygen-sensing regulatory system.
medical indications fdaapproved
- Primary FDA-approved indication for anemia secondary to chronic kidney disease.
- FDA-approved for treating anemia in cancer patients receiving chemotherapy.
- Used to reduce need for blood transfusions in certain surgical settings.
performance banned in sports
- Increases oxygen delivery to muscles, improving endurance capacity. Banned by WADA.
- May accelerate adaptation to high altitude by increasing red blood cell mass.
Typical Dose
50-300 IU/kg based on medical indication
Frequency
1-3 times weekly depending on response
Cycle Duration
Variable - ongoing medical therapy adjusted based on hemoglobin levels
Storage
2-8°C refrigerated; do not freeze; do not shake vials or syringes
No visual available
Due to this peptide having no amino acids, there is no molecular chain to display.
Chemical Makeup
Key benefits
Stimulates red blood cell production
Increases oxygen-carrying capacity
FDA-approved for anemia treatment
Improves endurance capacity
Supports patients with chronic kidney disease
Helps chemotherapy-induced anemia
Well-characterized mechanism of action
Extensively studied safety profile
Community interest
This peptide is still gaining traction in the community.
EPO | Red Blood Cell Stimulating Hormone
This overview is informational and based on aggregated descriptions from studies and user reports.
Was it helpful?YesNoErythropoietin (EPO) Molecular Information
View the scientifc details of Erythropoietin (EPO).
Molecular Weight
30DaChain Length
0Amino AcidsType
PeptideErythropoietin (EPO) Protocols
EPO is administered via subcutaneous or intravenous injection. Medical use requires prescription and monitoring. Dosing is individualized based on hemoglobin levels, with targets typically kept below 11-12 g/dL to minimize cardiovascular risks.
| Goal | Dosage | Frequency | Route |
|---|---|---|---|
| CKD Anemia (medical) | 50 | 3 week range | SubQ or IV |
| Chemotherapy Anemia (medical) | 150 | 3 week range | SubQ |
| Maintenance (medical) | — | 1 week range | SubQ |
Reconstitution Instructions
Materials needed:
Steps to reconstitute
- Most EPO comes in pre-filled syringes
- Allow to reach room temperature before injection
- Inject subcutaneously or intravenously as directed
- Do not shake vials or syringes
Erythropoietin (EPO) Cycle
The Erythropoietin (EPO) Cycle section explains how long a typical cycle lasts and what to expect during each phase. Over time, your body can become less responsive with continuous use.
Taking breaks between cycles may help maintain effectiveness and support better overall results.
- Day 1-3
- Bone marrow stimulation begins
- Week 1-2
- Reticulocyte count increases
- Week 2-4
- Hemoglobin begins rising
- Week 4-12
- Target hemoglobin achieved with proper dosing
Dosing tools
Erythropoietin (EPO) Peptide Dosage Calculator
Calculate peptide doses with our visual syringe guide.
mg
Enter the total amount of peptide in the vial in milligrams (as stated on the label).
The dose you want to inject per administration, in mcg or mg.
1,000 mcg = 1 mg
1 mL
2 mL
3 mL
5 mL
Custom
Volume of bacteriostatic water you add to reconstitute the powder. Use BAC water for preservation.
Injection Results
Based on your vial and dilution inputs.
Erythropoietin (EPO)
SINGLE COMPOUNDVolume per injection
0.05
mL
Concentration
10.00
mg/mL
Doses per vial
20
doses
Total injections per vial
20 injections
How it works
Based on a 10 mg Erythropoietin (EPO) vial diluted with 1 mL of bacteriostatic water, each 500 mcg injection equals 0.05 mL.
1mL / 100 units
5 units
0.050 mL
Reference Guide
Dosing Cycle
- Peptide
- Erythropoietin (EPO)
- Dosing
- 50-300 IU/kg based on medical indication
- Dosing Frequency
- 1-3 times weekly depending on response
- Cycle Duration
- Variable - ongoing medical therapy adjusted based on hemoglobin levels
- Storage
- 2-8°C refrigerated; do not freeze; do not shake vials or syringes
Note: Triple agonist; microdose for fewer side effects
Reconstitution Tips
- Use bacteriostatic water (BAC) — contains 0.9% benzyl alcohol for preservation
- Inject water slowly — aim down the vial wall, not directly onto powder
- Never shake — gently swirl or roll the vial until dissolved
- Store properly — refrigerate at 2-8°C after reconstitution
- Use within 28 days — most reconstituted peptides remain stable for about 4 weeks
- Keep sterile — always clean vial tops with alcohol before drawing
Peptide Interactions
Research suggestions of Erythropoietin (EPO) interactions with other common peptides and substances.
Side effects
Contraindications
Uncontrolled hypertension
Pure red cell aplasia history
Hemoglobin >12 g/dL (increased cardiovascular risk)
Active malignancy (relative contraindication)
Stop signs
Severe headache or vision changes
Chest pain or shortness of breath
Signs of blood clots (leg swelling, pain)
Sudden loss of response to EPO
Bad signs
Comments
0.0
0 reviews
5
4
3
2
1
No comments yet
Be the first to share your experience. Your review helps others make more informed decisions.
Frequently asked questions
What is a peptide dosage calculator?
A peptide dosage calculator is a free tool that converts your vial size, bacteriostatic water volume, and target dose into an exact syringe draw volume. Instead of doing the reconstitution math by hand, you enter three inputs and instantly get the concentration of your solution and how many milliliters or syringeunits to draw. This calculator works for single peptide compounds and multi-peptide blends.
How do I calculate peptide dosage from a vial?
To calculate your peptide dose, divide the total peptide content of your vial in micrograms by the volume of bacteriostatic water you added in milliliters. This gives you your solution concentration in mcg/mL. Then divide your target dose by that concentration to get your draw volume. For example, a 5mg (5,000 mcg) vial reconstituted with 2mL of BAC water gives a concentration of 2,500 mcg/mL. A 250 mcg dose would require drawing 0.1mL. This calculator automates all of those steps instantly.
How much Bacteriostatic water should I add to a peptide vial?
Most people add 2mL to 3mL of bacteriostatic water per vial, but the right amount depends on the dose you want to draw and the syringe size you are using. Adding 1mL to a 5mg vial gives you a concentration of 5,000 mcg/mL, making each dose very small in volume. Adding 2mL gives you 2,500 mcg/mL, which is easier to measure on a standard insulin syringe. A general guideline is to choose a volume that puts your typical dose somewhere between 10 and 30 units on a U-100 syringe. Use the calculator above to test different water volumes and find what works for your dose.
How are peptides different from proteins?
Both are made of amino acids, but peptides are much smaller than proteins. Because of their tiny size, peptides can act like tiny messengers in the body, sending specific signals to your cells to tell them exactly what to do.
Erythropoietin (EPO)Research References
Erythropoietin (EPO) is an extensively studied compound
Erythropoietin (EPO)
Erythropoietin (EPO) is an extensively studied compound
Erythropoietin regulation of red blood cell production
Comprehensive review of EPO's oxygen-sensing mechanism and regulation of RBC production.
n.d.
Erythropoietin Stimulating Agents
FDA-approved indications include CKD anemia and chemotherapy-induced anemia. Risks increase when hemoglobin exceeds 11-12 g/dL.
n.d.
Erythropoiesis-stimulating agents and other methods to enhance oxygen transport
rHuEPO increases O2 supply to muscles and boosts performance in endurance sports.
n.d.
The mechanism of erythropoietin action
EPO promotes survival of erythroid progenitors by protecting from apoptosis.
n.d.