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SNAP-8: 10 mg vial with 2 mL water
Quick answer
Adding 2 mL of bacteriostatic water to a 10 mg SNAP-8 vial gives 5 mg/mL (5000 mcg/mL), so each unit on a U-100 insulin syringe holds 50 mcg. A 330 mcg dose is 6.6 units (0.066 mL), and the vial holds about 30 doses of that size.
Concentration
- Vial: 10 mg SNAP-8
- Bacteriostatic water: 2 mL
- Concentration: 5 mg/mL (5000 mcg/mL)
- 1 unit on a U-100 syringe = 50 mcg
SNAP-8 dose to syringe units
| Dose | Syringe units (U-100) | Volume | Doses per vial |
|---|---|---|---|
| 50 mcg | 1 units | 0.01 mL | 200 |
| 100 mcg | 2 units | 0.02 mL | 100 |
| 200 mcg | 4 units | 0.04 mL | 50 |
| 250 mcg | 5 units | 0.05 mL | 40 |
| 300 mcg | 6 units | 0.06 mL | 33 |
| 330 mcg (protocol dose) | 6.6 units | 0.066 mL | 30 |
| 500 mcg (protocol dose) | 10 units | 0.1 mL | 20 |
| 1 mg (protocol dose) | 20 units | 0.2 mL | 10 |
Units on a U-100 insulin syringe (100 units = 1 mL).
Common questions
How many units is 330 mcg of SNAP-8 from a 10 mg vial with 2 mL water?
330 mcg is 6.6 units (0.066 mL) on a U-100 insulin syringe. With 2 mL of water in a 10 mg vial, each unit holds 50 mcg. For comparison: 300 mcg = 6 units, 500 mcg = 10 units, 1 mg = 20 units.
What is the concentration of a 10 mg SNAP-8 vial mixed with 2 mL of water?
10 mg divided by 2 mL is 5 mg/mL, or 5000 mcg per mL. On a U-100 syringe (100 units = 1 mL) that is 50 mcg per unit.
How many 330 mcg doses are in a 10 mg vial?
About 30. The water volume changes how many units each dose takes, not how many doses the vial holds.
How much water should I add to a 10 mg SNAP-8 vial?
The Crestigen SNAP-8 protocol uses 3 mL. 2 mL works too as long as you calculate units for this concentration (5 mg/mL) and label the vial.
Other SNAP-8 vial and water combinations
- 10 mg vial + 1 mL water
- 10 mg vial + 2 mL water
- 10 mg vial + 3 mL water
Open this in the dosage calculator · Full SNAP-8 protocol, reconstitution and storage