Selank 10 mg vial
How much bacteriostatic water to add to a 10 mg vial of Selank, the syringe units for each common dose, and how many doses the vial holds.
- Water
- 3 mL
- Strength
- 3.333 mg/mL
- Common dose
- 300 mcg
- Draw
- 9 units0.09 mL
- Doses per vial
- 33
The short answer
Mixed with 3 mL of bacteriostatic water, a 10 mg vial of Selank holds 3.333 mg/mL. A 300 mcg dose is then 9 units (0.09 mL) on a U-100 insulin syringe, and the vial holds about 33 doses of that size. Taken 2× per day, it lasts about 2.4 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 300 mcg |
|---|---|---|---|
| 1 mL | 10 mg/mL | 100 mcg | 3 units (0.03 mL) |
| 2 mL | 5 mg/mL | 50 mcg | 6 units (0.06 mL) |
| 3 mL | 3.333 mg/mL | 33.3 mcg | 9 units (0.09 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 | |
| 250 mcg | |||
| 300 mcg | |||
| 400 mcg | |||
| 500 mcg | |||
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
- Label 2 drops per nostril 3× daily for 14 days. That is roughly 300 mcg per dose, estimated from the 0.15% strength; the label gives drops only.
- Community 250–500 mcg per dose, 1–3× daily, intranasal or by injection.
Doses are what labels, trials or community reports reference, not recommendations. Selank’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 3 mLDraw 3 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, 3.333 mg/mL, on the vial.
Storage: Powder: −20 °C. Mixed: 2–8 °C, use within 2–4 weeks.
The reconstitution guide covers each step, and the units page explains syringe markings.
Questions
How much water do I add to a 10 mg vial of Selank?
There’s no single right amount: the water only sets the strength. With 3 mL of bacteriostatic water, a 10 mg vial holds 3.333 mg/mL. With 1 mL it’s 10 mg/mL; with 2 mL it’s 5 mg/mL. Less liquid makes each dose a smaller draw; more makes small doses easier to measure.
How many units is 300 mcg of Selank?
With 3 mL in a 10 mg vial, 300 mcg is 9 units (0.09 mL) on a U-100 insulin syringe. With 1 mL, 3 units (0.03 mL); with 2 mL, 6 units (0.06 mL).
How many doses are in a 10 mg vial of Selank?
About 33 doses of 300 mcg, or 25 of 400 mcg or 20 of 500 mcg. Taken 2× per day at 300 mcg, it lasts about 2.4 weeks.
How long does a mixed vial of Selank keep?
Powder: −20 °C. Mixed: 2–8 °C, use within 2–4 weeks.
Other vial sizes
Sources
- Selank 0.15% official instructions (medi.ru, Russian)
- Selank registration entry (Vidal.ru, Russian)
The math on this page uses the doses and storage on Selank’s page.