TB-500 Dosage Calculator
FDA identifies TB-500 as a thymosin beta-4 fragment and reports a lack of human exposure data for this fragment. This page converts entered values; it does not establish a safe dose or preparation method.
- Example vial inputs
- 2 mg · 5 mg · 10 mg
Not FDA-approved for human use.
Step 1
Your vial & dose
What’s in your vial?
Vial values are examples. Replace them with your product or pharmacy label values.
Use the final volume confirmed by your product instructions or pharmacist. It may differ from the diluent volume added. If the label gives mg/mL, choose “Label concentration”.
Step 2
Type the dose exactly as written on your prescription or label. We don’t suggest doses.
Step 3
Syringe size
Smaller barrels have finer marks, which makes small doses easier to read.
Live syringe preview · 100-unit
Draw to
—
Enter the dose on your prescription to see how many units to draw.
- Concentration
- 2.5 mg/mL
- Each unit contains
- 25 mcg
Quick reference
Units → dose at your concentration
2.5 mg/mL · 25 mcg per unit
Arithmetic examples only. These amounts are not suggested doses.
2 units
50 mcg
0.02 mL
5 units
125 mcg
0.05 mL
10 units
250 mcg
0.1 mL
15 units
375 mcg
0.15 mL
20 units
500 mcg
0.2 mL
25 units
625 mcg
0.25 mL
30 units
750 mcg
0.3 mL
40 units
1 mg
0.4 mL
50 units
1.25 mg
0.5 mL
60 units
1.5 mg
0.6 mL
75 units
1.88 mg
0.75 mL
100 units
2.5 mg
1 mL
Dosing schedule
Is there a standard TB-500 dose?
There is no FDA-approved dosing for this compound. This page only converts the dose you enter into syringe units — it does not recommend a dose.
Storing your vial
- This page does not provide a validated preparation method, storage temperature or beyond-use period for this unapproved product.
- A calculation cannot establish a product’s identity, sterility or suitability for injection. Ask a licensed pharmacist about the specific product before use.
Please read before injecting
Always confirm your dose, concentration and syringe markings with your prescriber or pharmacist. Small calculation errors can have serious consequences. This tool does math — it doesn’t tell you what dose to take.
Sources
References
Last updated October 2026.
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