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Prostamax (20 mg Vial): 20 mg vial with 1 mL water
Quick answer
Adding 1 mL of bacteriostatic water to a 20 mg Prostamax (20 mg Vial) vial gives 20 mg/mL (20000 mcg/mL), so each unit on a U-100 insulin syringe holds 200 mcg. A 200 mcg dose is 1 units (0.01 mL), and the vial holds about 100 doses of that size.
Concentration
- Vial: 20 mg Prostamax (20 mg Vial)
- Bacteriostatic water: 1 mL
- Concentration: 20 mg/mL (20000 mcg/mL)
- 1 unit on a U-100 syringe = 200 mcg
Prostamax (20 mg Vial) dose to syringe units
| Dose | Syringe units (U-100) | Volume | Doses per vial |
|---|---|---|---|
| 100 mcg (protocol dose) | 0.5 units, too small to measure reliably | 0.005 mL | 200 |
| 200 mcg | 1 units | 0.01 mL | 100 |
| 250 mcg | 1.3 units | 0.013 mL | 80 |
| 300 mcg | 1.5 units | 0.015 mL | 66 |
| 500 mcg | 2.5 units | 0.025 mL | 40 |
| 750 mcg | 3.8 units | 0.038 mL | 26 |
| 1 mg | 5 units | 0.05 mL | 20 |
| 1.5 mg | 7.5 units | 0.075 mL | 13 |
Units on a U-100 insulin syringe (100 units = 1 mL).
Common questions
How many units is 200 mcg of Prostamax (20 mg Vial) from a 20 mg vial with 1 mL water?
200 mcg is 1 units (0.01 mL) on a U-100 insulin syringe. With 1 mL of water in a 20 mg vial, each unit holds 200 mcg. For comparison: 250 mcg = 1.3 units, 300 mcg = 1.5 units, 500 mcg = 2.5 units.
What is the concentration of a 20 mg Prostamax (20 mg Vial) vial mixed with 1 mL of water?
20 mg divided by 1 mL is 20 mg/mL, or 20000 mcg per mL. On a U-100 syringe (100 units = 1 mL) that is 200 mcg per unit.
How many 200 mcg doses are in a 20 mg vial?
About 100. 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 20 mg Prostamax (20 mg Vial) vial?
The Crestigen Prostamax (20 mg Vial) protocol uses 2 mL. 1 mL works too as long as you calculate units for this concentration (20 mg/mL) and label the vial.
Other Prostamax (20 mg Vial) vial and water combinations
- 20 mg vial + 1 mL water
- 20 mg vial + 2 mL water
- 20 mg vial + 3 mL water
Open this in the dosage calculator · Full Prostamax (20 mg Vial) protocol, reconstitution and storage