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PE-22-28: 10 mg vial with 3 mL water
Quick answer
Adding 3 mL of bacteriostatic water to a 10 mg PE-22-28 vial gives 3.33 mg/mL (3333.3 mcg/mL), so each unit on a U-100 insulin syringe holds 33.3 mcg. A 50 mcg dose is 1.5 units (0.015 mL), and the vial holds about 200 doses of that size.
Concentration
- Vial: 10 mg PE-22-28
- Bacteriostatic water: 3 mL (the volume in the Crestigen protocol)
- Concentration: 3.33 mg/mL (3333.3 mcg/mL)
- 1 unit on a U-100 syringe = 33.3 mcg
PE-22-28 dose to syringe units
| Dose | Syringe units (U-100) | Volume | Doses per vial |
|---|---|---|---|
| 50 mcg (protocol dose) | 1.5 units | 0.015 mL | 200 |
| 100 mcg (protocol dose) | 3 units | 0.03 mL | 100 |
| 150 mcg (protocol dose) | 4.5 units | 0.045 mL | 66 |
| 200 mcg (protocol dose) | 6 units | 0.06 mL | 50 |
| 250 mcg | 7.5 units | 0.075 mL | 40 |
| 300 mcg | 9 units | 0.09 mL | 33 |
| 500 mcg | 15 units | 0.15 mL | 20 |
| 750 mcg | 22.5 units | 0.225 mL | 13 |
Units on a U-100 insulin syringe (100 units = 1 mL).
Common questions
How many units is 50 mcg of PE-22-28 from a 10 mg vial with 3 mL water?
50 mcg is 1.5 units (0.015 mL) on a U-100 insulin syringe. With 3 mL of water in a 10 mg vial, each unit holds 33.3 mcg. For comparison: 100 mcg = 3 units, 150 mcg = 4.5 units, 200 mcg = 6 units.
What is the concentration of a 10 mg PE-22-28 vial mixed with 3 mL of water?
10 mg divided by 3 mL is 3.33 mg/mL, or 3333.3 mcg per mL. On a U-100 syringe (100 units = 1 mL) that is 33.3 mcg per unit.
How many 50 mcg doses are in a 10 mg vial?
About 200. 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 PE-22-28 vial?
3 mL is the volume used in the Crestigen PE-22-28 protocol. More water makes each dose a larger, easier-to-measure number of units; less water keeps injections smaller.
Other PE-22-28 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 PE-22-28 protocol, reconstitution and storage