Selank Calculator
Enter your Selank vial size, the water you add and your dose to get the units to draw on a U-100 syringe. The units chart and water table below cover 5, 10 mg vials.
How many units is each Selank dose?
Units on a U-100 insulin syringe for common amounts, with 2 mL of bacteriostatic water in the vial. With a different water amount, use the calculator above.
| Dose (mcg) | 5 mg vial + 2 mL | 10 mg vial + 2 mL |
|---|---|---|
| 250 mcg | 10 units 0.1 mL | 5 units 0.05 mL |
| 300 mcg | 12 units 0.12 mL | 6 units 0.06 mL |
| 500 mcg | 20 units 0.2 mL | 10 units 0.1 mL |
| 1000 mcg | 40 units 0.4 mL | 20 units 0.2 mL |
How much bac water for Selank?
Water only changes how much liquid each dose takes up, not how much Selank is in it. To land a 300 mcg dose on a round number of units, add:
| Vial | So 300 mcg = 10 units | So 300 mcg = 20 units |
|---|---|---|
| 5 mg | 1.67 mL | 3.33 mL |
| 10 mg | 3.33 mL | 6.67 mL |
How do you reconstitute Selank?
- Concentration: 5 mg ÷ 2 mL = 2.5 mg/mL (25 mcg per unit).
- Volume to draw: 300 mcg ÷ 2.5 mg/mL = 0.12 mL.
- Syringe units: 0.12 mL × 100 = 12 units on a U-100 syringe.
Example numbers only. They come from the default vial, water and amount above, not a recommendation.
What else do people ask about Selank?
How many units is 300 mcg of Selank?
It depends on how much water is in the vial. With a 5 mg vial and 2 mL of water, 300 mcg is 12 units (0.12 mL) on a U-100 syringe. Change the vial or water amount above to see your number.
How much bacteriostatic water do I add to a Selank vial?
There's no single right amount. More water makes each unit weaker and the draw bigger, which is easier to measure. Less water makes the draw smaller. Many people pick an amount that puts their dose on a round number of units. The "Units → water to add" tab and the table above work this out.
How many doses are in a 5 mg Selank vial?
At 300 mcg per dose, a 5 mg vial holds 16.6 doses. The amount of water doesn't change this.
Does this page recommend a Selank dose?
No. This page only converts amounts you enter into syringe units. Ask a licensed clinician about whether and how to use Selank.