Prostamax 20 mg vial
How much bacteriostatic water to add to a 20 mg vial of Prostamax, the syringe units for each common dose, and how many doses the vial holds.
- Water
- 2 mL
- Strength
- 10 mg/mL
- Common dose
- 1 mg
- Draw
- 10 units0.10 mL
- Doses per vial
- 20
The short answer
Mixed with 2 mL of bacteriostatic water, a 20 mg vial of Prostamax holds 10 mg/mL. A 1 mg dose is then 10 units (0.10 mL) on a U-100 insulin syringe, and the vial holds about 20 doses of that size. Taken 1× per day, it lasts about 2.9 weeks.
How much water
The water only sets the strength; the dose and the number of doses in the vial stay the same. Draws are on a U-100 insulin syringe, where 1 unit is 0.01 mL.
| Water added | Strength | Per syringe unit | Draw for 1 mg |
|---|---|---|---|
| 1 mL | 20 mg/mL | 200 mcg | 5 units (0.05 mL) |
| 2 mL | 10 mg/mL | 100 mcg | 10 units (0.10 mL) |
| 3 mL | 6.667 mg/mL | 66.7 mcg | 15 units (0.15 mL) |
Dose chart
Syringe units for each common dose at each water volume. Select a cell to open it in the calculator.
| Dose | Water added | ||
|---|---|---|---|
| 1 mL | 2 mL | 3 mL | |
| 0.2 mg | |||
| 0.3 mg | |||
| 0.4 mg | |||
| 0.6 mg | |||
| 0.75 mg | |||
| 1 mg | |||
| 1.5 mg | |||
| 2 mg | |||
Draws over 100 units show in mL. Faded values are under 2 units, which is hard to measure. Check that your vial holds the larger volumes.
Where the doses come from
- Community Injected: 1–2 mg once daily for 10–20 days in most guides; one uses 200 mcg daily for 10 days. No human dosing study exists.
Doses are what labels, trials or community reports reference, not recommendations. Prostamax’s page has the cycle, side effects, cautions and sources.
Mixing and storage
- PrepareLet a refrigerated vial come to room temperature, and wipe both stoppers with an alcohol swab.
- Add 2 mLDraw 2 mL of bacteriostatic water and let it run slowly down the inside wall of the vial.
- Swirl, don’t shakeSwirl gently until the powder dissolves and the liquid is clear.
- Label itWrite the date and the strength, 10 mg/mL, on the vial.
Storage: Powder: −20 °C. Mixed: 2–8 °C, use within about 4 weeks.
The reconstitution guide covers each step, and the units page explains syringe markings.
Questions
How much water do I add to a 20 mg vial of Prostamax?
There’s no single right amount: the water only sets the strength. With 2 mL of bacteriostatic water, a 20 mg vial holds 10 mg/mL. With 1 mL it’s 20 mg/mL; with 3 mL it’s 6.667 mg/mL. Less liquid makes each dose a smaller draw; more makes small doses easier to measure.
How many units is 1 mg of Prostamax?
With 2 mL in a 20 mg vial, 1 mg is 10 units (0.10 mL) on a U-100 insulin syringe. With 1 mL, 5 units (0.05 mL); with 3 mL, 15 units (0.15 mL).
How many doses are in a 20 mg vial of Prostamax?
About 20 doses of 1 mg, or 13 of 1.5 mg or 10 of 2 mg. Taken 1× per day at 1 mg, it lasts about 2.9 weeks.
How long does a mixed vial of Prostamax keep?
Powder: −20 °C. Mixed: 2–8 °C, use within about 4 weeks.
Sources
- Dzhokhadze et al., Prostamax (Lys-Glu-Asp-Pro) and chromatin in cells from people aged 75–86 (Georgian Med News 2012, in Russian) PMID 23221144
- Khavinson et al., short peptides including Prostamax and lymphocyte chromatin in people aged 75–88 (Bull Exp Biol Med 2004) PMID 15085253
- Zakutskii et al., cardiogen, bronchogen, prostamax and pancragen in tissue cultures from young and old rats (Adv Gerontol 2006, in Russian) PMID 17152728
- Khavinson et al., peptide regulation of gene expression, systematic review listing the group’s peptides and sequences (Molecules 2021) PMID 34834147
The math on this page uses the doses and storage on Prostamax’s page.