Calculators / TB-500 dose charts
TB-500 dose charts (mg → U-100 units)
Units to draw on a standard U-100 insulin syringe, for each common TB-500 vial size and BAC-water volume. Doses shown reflect ranges reported in published research — they are reference points for the math, not recommendations. For other numbers, use the live calculator.
5 mg vial
| Dose | + 1 mL water (5 mg/mL) | + 2 mL water (2.5 mg/mL) | + 3 mL water (1.6666666666666667 mg/mL) |
|---|---|---|---|
| 2 mg | 40 u | 80 u | > syringe |
| 2.5 mg | 50 u | 100 u | > syringe |
| 5 mg | 100 u | > syringe | > syringe |
10 mg vial
| Dose | + 1 mL water (10 mg/mL) | + 2 mL water (5 mg/mL) | + 3 mL water (3.3333333333333335 mg/mL) |
|---|---|---|---|
| 2 mg | 20 u | 40 u | 60 u |
| 2.5 mg | 25 u | 50 u | 75 u |
| 5 mg | 50 u | 100 u | > syringe |
Formula: units = dose ÷ concentration × 100 · concentration = vial mg ÷ water mL · TB-500 half-life ≈ 2–3 days (Thymosin β4 pharmacokinetic literature (see monograph))
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