SS-31 dosage chart
This SS-31 units chart covers the vial sizes sold. Your dose sits on the left, your vial and water across the top, and where they meet you read the units to draw.
- sold vial sizes
- 10 mg, 30 mg, 50 mg
- status of approval
- FDA-approved: No
- for every unit in a U-100 syringe
- mL: 0.01
Units chart for SS-31 dosing
| Your dose | 10 mg vial + 2 mL | 30 mg vial + 3 mL | 50 mg vial + 5 mL |
|---|---|---|---|
| 200 mcg | 4 units | 2 units | 2 units |
| 250 mcg | 5 units | 2.5 units | 2.5 units |
| 300 mcg | 6 units | 3 units | 3 units |
| 500 mcg | 10 units | 5 units | 5 units |
| 750 mcg | 15 units | 7.5 units | 7.5 units |
| 1.5 mg | 30 units | 15 units | 15 units |
| 2 mg | 40 units | 20 units | 20 units |
| 3 mg | 60 units | 30 units | 30 units |
| 4 mg | 80 units | 40 units | 40 units |
The dose rows use round amounts so the table is easy to read. They are not a suggested dose, and no FDA label exists.
How to read the SS-31 dosing chart
Choose the column matching your vial and the water you added, such as 10 mg with 2 mL. Then go down to your dose. On a U-100 insulin syringe, the cell shows how many units to draw. When your water amount isn't listed, the calculator calculates the units for any amount.

Table for SS-31 reconstitution
| Vial | Water added | Strength | Units for a sample dose |
|---|---|---|---|
| 10 mg | 1 mL | 10 mg/mL | 2.5 units for 250 mcg |
| 10 mg | 2 mL | 5 mg/mL | 5 units for 250 mcg |
| 10 mg | 3 mL | 3.333 mg/mL | 7.5 units for 250 mcg |
| 30 mg | 1 mL | 30 mg/mL | 3.3 units for 1 mg |
| 30 mg | 2 mL | 15 mg/mL | 6.7 units for 1 mg |
| 30 mg | 3 mL | 10 mg/mL | 2.5 units for 250 mcg |
| 50 mg | 2 mL | 25 mg/mL | 4 units for 1 mg |
| 50 mg | 3 mL | 16.667 mg/mL | 6 units for 1 mg |
| 50 mg | 5 mL | 10 mg/mL | 2.5 units for 250 mcg |
| 50 mg | 10 mL | 5 mg/mL | 5 units for 250 mcg |
Approval status for SS-31
Not FDA-approved for use in people for any purpose; sold as a research chemical.
Questions people often ask
My SS-31 vial size isn't listed in the chart. What should I do?
Open the SS-31 calculator. Enter any vial size and your water amount to see the units.