Use this Epithalon dosage calculator (also spelled Epitalon) to translate vial strength and BAC water volume into a precise draw in mL and syringe units for 10 mg and 20 mg vials. The page focuses on math, not on dosing recommendations.
- Common vial examples
- 10 / 20 mg
- Example dose
- 5 mg
- Common syringe
- U-100 insulin
- Last reviewed
Quick math example
A 20 mg vial mixed with 2 mL gives 10 mg/mL. A 5 mg dose is 0.5 mL, which equals 50 units on a U-100 syringe.
Epithalon reconstitution reference
U-100 units to draw for each common Epithalon dose, by vial size, reconstituted with 2 mL of bacteriostatic water. Change the water volume in the calculator above to recompute for your own setup.
| Vial | Concentration | 5 mg | 10 mg |
|---|---|---|---|
| 10 mg | 5 mg/mL | 100 u(1 mL) | 200 u(2 mL) |
| 20 mg | 10 mg/mL | 50 u(0.5 mL) | 100 u(1 mL) |
Swipe the table to see every dose →
Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100). Always confirm against your own vial, diluent, and clinician or pharmacy instructions.
How the Epithalon calculation works
Epithalon vials are commonly labelled in milligrams. Concentration is found by dividing the vial total by your BAC water volume; the draw volume is your target dose divided by that concentration.
Cycle protocols often involve daily dosing for short windows, so saving the calculated draw amount avoids repeated math.
- 20 mg vial = 20,000 mcg total
- 20,000 mcg / 2 mL = 10,000 mcg per mL
- 5,000 mcg target = 0.5 mL draw
Epithalon 20 mg vial with 2 mL example
A 20 mg Epithalon vial mixed with 2 mL gives 10 mg/mL, or 10,000 mcg/mL.
A 5 mg (5,000 mcg) daily dose is 0.5 mL, which equals 50 units on a U-100 syringe. A 10 mg dose would be the full 1.0 mL, or 100 units.
- 20 mg / 2 mL = 10 mg/mL
- 5 mg / 10 mg per mL = 0.5 mL = 50 U-100 units
- 10 mg / 10 mg per mL = 1.0 mL = 100 U-100 units
Epithalon 10 mg vial with 2 mL example
A 10 mg vial mixed with 2 mL gives 5 mg/mL — half the strength of the 20 mg example.
At this lower concentration the same 5 mg dose now needs the full 1.0 mL (100 units). If you prefer a smaller draw, a 20 mg vial or less water raises the concentration: 10 mg in 1 mL is 10 mg/mL, so 5 mg becomes 0.5 mL (50 units).
- 10 mg / 2 mL = 5 mg/mL
- 5 mg / 5 mg per mL = 1.0 mL = 100 U-100 units
- 10 mg / 1 mL = 10 mg/mL → 5 mg = 0.5 mL = 50 units
Epithalon dosage in units: Epitalon 10 mg and 20 mg vials
Community Epitalon protocols describe the dose in milligrams per day over a short course, most often in the 5 to 10 mg range, which is far larger than most research peptides. This page does not recommend a dose; it converts the target you enter. The table below shows what those commonly cited amounts look like on a U-100 syringe for each vial size at 2 mL of bacteriostatic water.
Because the doses are large, concentration matters more than usual: at 5 mg/mL a 10 mg dose is 2 mL — two full 1 mL syringes — while at 10 mg/mL it is a single 1 mL draw. For a 10 mg daily course from a 20 mg vial, 2 mL of water gives exactly two doses per vial.
- 20 mg in 2 mL (10 mg/mL): 5 mg = 50 units, 10 mg = 100 units
- 10 mg in 2 mL (5 mg/mL): 5 mg = 100 units, 10 mg = 200 units (two syringes)
- 10 mg in 1 mL (10 mg/mL): 5 mg = 50 units, 10 mg = 100 units
Epithalon (Epitalon) units per dose by vial size (2 mL BAC water)
U-100 units to draw for each common Epithalon dose, by vial size, reconstituted with 2 mL of bacteriostatic water. Change the water volume in the calculator above to recompute for your own setup.
| Vial | Concentration | 5 mg | 10 mg |
|---|---|---|---|
| 10 mg | 5 mg/mL | 100 u(1 mL) | 200 u(2 mL) |
| 20 mg | 10 mg/mL | 50 u(0.5 mL) | 100 u(1 mL) |
Swipe the table to see every dose →
Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100). Always confirm against your own vial, diluent, and clinician or pharmacy instructions.
Track reconstitution date and doses remaining
Epithalon is typically run as a daily course over one to three weeks, so a single reconstituted vial is used across many days. Once a vial is mixed, beyond-use dates and cold storage become part of the protocol.
PepSync stores the reconstitution date alongside the calculator inputs and counts the doses remaining, so you do not lose track between days of a cycle.
Frequently asked questions
Is Epithalon approved as a medicine?
How do I handle a higher-concentration Epithalon vial?
Does the calculator track cycle progress?
Why is Epithalon often dosed daily for short cycles?
What is a typical Epitalon dosage?
How many units is 5 mg of Epithalon?
Primary sources
Background references for this calculator. PepSync does not make clinical claims; these citations support the educational context only.