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ARA-290: 10 mg vial with 1 mL water
Quick answer
Adding 1 mL of bacteriostatic water to a 10 mg ARA-290 vial gives 10 mg/mL (10000 mcg/mL), so each unit on a U-100 insulin syringe holds 100 mcg. A 4 mg dose is 40 units (0.4 mL), and the vial holds about 2 doses of that size.
Concentration
- Vial: 10 mg ARA-290
- Bacteriostatic water: 1 mL
- Concentration: 10 mg/mL (10000 mcg/mL)
- 1 unit on a U-100 syringe = 100 mcg
ARA-290 dose to syringe units
| Dose | Syringe units (U-100) | Volume | Doses per vial |
|---|---|---|---|
| 100 mcg | 1 units | 0.01 mL | 100 |
| 200 mcg | 2 units | 0.02 mL | 50 |
| 250 mcg | 2.5 units | 0.025 mL | 40 |
| 300 mcg | 3 units | 0.03 mL | 33 |
| 500 mcg | 5 units | 0.05 mL | 20 |
| 750 mcg | 7.5 units | 0.075 mL | 13 |
| 1 mg | 10 units | 0.1 mL | 10 |
| 4 mg (protocol dose) | 40 units | 0.4 mL | 2 |
Units on a U-100 insulin syringe (100 units = 1 mL).
Common questions
How many units is 4 mg of ARA-290 from a 10 mg vial with 1 mL water?
4 mg is 40 units (0.4 mL) on a U-100 insulin syringe. With 1 mL of water in a 10 mg vial, each unit holds 100 mcg. For comparison: 500 mcg = 5 units, 750 mcg = 7.5 units, 1 mg = 10 units.
What is the concentration of a 10 mg ARA-290 vial mixed with 1 mL of water?
10 mg divided by 1 mL is 10 mg/mL, or 10000 mcg per mL. On a U-100 syringe (100 units = 1 mL) that is 100 mcg per unit.
How many 4 mg doses are in a 10 mg vial?
About 2. 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 ARA-290 vial?
The Crestigen ARA-290 protocol uses 2 mL. 1 mL works too as long as you calculate units for this concentration (10 mg/mL) and label the vial.
Other ARA-290 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 ARA-290 protocol, reconstitution and storage