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Oxytocin: 10 mg vial with 3 mL water
Quick answer
Adding 3 mL of bacteriostatic water to a 10 mg Oxytocin vial gives 3.33 mg/mL (3333.3 mcg/mL), so each unit on a U-100 insulin syringe holds 33.3 mcg. A 100 mcg dose is 3 units (0.03 mL), and the vial holds about 100 doses of that size.
Concentration
- Vial: 10 mg Oxytocin
- 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
Oxytocin dose to syringe units
| Dose | Syringe units (U-100) | Volume | Doses per vial |
|---|---|---|---|
| 50 mcg | 1.5 units | 0.015 mL | 200 |
| 100 mcg (protocol dose) | 3 units | 0.03 mL | 100 |
| 200 mcg (protocol dose) | 6 units | 0.06 mL | 50 |
| 250 mcg | 7.5 units | 0.075 mL | 40 |
| 300 mcg (protocol dose) | 9 units | 0.09 mL | 33 |
| 400 mcg (protocol dose) | 12 units | 0.12 mL | 25 |
| 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 100 mcg of Oxytocin from a 10 mg vial with 3 mL water?
100 mcg is 3 units (0.03 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: 200 mcg = 6 units, 300 mcg = 9 units, 400 mcg = 12 units.
What is the concentration of a 10 mg Oxytocin 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 100 mcg doses are in a 10 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 10 mg Oxytocin vial?
3 mL is the volume used in the Crestigen Oxytocin protocol. More water makes each dose a larger, easier-to-measure number of units; less water keeps injections smaller.
Other Oxytocin 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 Oxytocin protocol, reconstitution and storage