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DosingCalc

TB-500 reconstitution calculator

Synthetic fragment of thymosin beta-4. Studied for tissue repair, wound healing, and inflammation reduction. No published human PK for the synthetic peptide; the listed half-life is a community estimate from endogenous Tβ4 kinetics (Mora, Ann N Y Acad Sci 2007).

By the DosingCalc editorial team. Numbers and dose ranges are checked against the sources listed on our editorial standards page.

Medically reviewed by Elena Whitmore, PharmD.

Half-life

1.0 days

Storage

2-8°C refrigerated

Route

subcutaneous

Shelf life

21 days

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Common side effects

headache, nausea, injection site irritation

Common vial sizes

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Frequently asked questions

How much bacteriostatic water should I add to TB-500?

For a 5mg vial of TB-500, add 2ml of bacteriostatic water. This concentration works well with a standard insulin syringe.

What is the typical TB-500 dosage?

Typical research dosages for TB-500 range from 2000 to 5000 mcg, administered 2x weekly.

How long does reconstituted TB-500 last?

Reconstituted TB-500 should be stored at 2-8°C refrigerated and used within 21 days. Unreconstituted vials can be stored for up to 24 months.

How do I calculate my TB-500 dose?

Divide your target dose by the concentration to get the volume, then multiply by 100 for units on a U-100 insulin syringe. For example, a 5mg vial in 2ml of bacteriostatic water gives 2500 mcg/ml. The calculator above does this automatically once you enter your vial size, water volume, and desired dose.

How many units of TB-500 should I draw on an insulin syringe?

On a U-100 insulin syringe, 1 unit equals 0.01 ml regardless of the barrel size (0.3ml, 0.5ml, or 1ml). Enter your reconstitution details in the calculator to see the exact number of units to draw for your dose.