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Tesamorelin dosage calculator.
Reconstituting tesamorelin? Enter the mg in the vial, the bacteriostatic water you add, and your target dose. You get the exact concentration, the volume to draw in mL, and the units on a U-100 syringe. No rounding, no account, and the full math is shown every time.
Units shown for a U-100 insulin syringe (1 mL = 100 units). No rounding · the full math is above.
How the math works
Three steps, no hand-waving.
Reconstitution is simple arithmetic. The only thing that matters is that it is exact, and that you can see every step.
Vial mg ÷ BAC water mL = mg/mL. A 10 mg vial in 2 mL of water is 5.0000 mg/mL.
Target dose ÷ concentration = mL to draw. 2 mg ÷ 5.0000 mg/mL = 0.4000 mL.
Draw mL × 100 = units on a U-100 insulin syringe. 0.4000 mL = 40 units.
Background
What tesamorelin reconstitution is
Tesamorelin is a stabilized analog of growth-hormone-releasing hormone (GHRH). It is FDA-approved under the brand Egrifta to reduce excess visceral abdominal fat in people with HIV-associated lipodystrophy. Supplied as a lyophilized powder, it is reconstituted with sterile or bacteriostatic water before a dose can be drawn. Concentration is the mg in the vial divided by the mL of water you add. The branded product is dosed at 2 mg once daily subcutaneously; compounded vials can be larger, which changes the draw, so the calculator shows every decimal to keep it exact.
- Reconstitution built into the dose logger, not a separate tool
- 28-day BAC water expiry countdown per vial
- Doses remaining and refill warnings, all derived
- Local-first · no account, data stays on your device
FAQ
Tesamorelin reconstitution questions, answered.
How do you calculate a tesamorelin dose?
Divide the mg of tesamorelin in the vial by the mL of water you add for the concentration in mg/mL. Then divide your target dose (in mg) by that concentration for the draw volume in mL, and multiply by 100 for units on a U-100 insulin syringe.
How much water for a tesamorelin vial?
There is no single correct amount. A 10 mg vial in 2 mL is 5 mg/mL; the FDA Egrifta product is reconstituted per its own instructions. Enter the amount you plan to add and the calculator returns your exact numbers. Always follow your product's directions.
How many units is 2 mg of tesamorelin?
It depends on the concentration. At 5 mg/mL (a 10 mg vial in 2 mL), 2 mg is 0.4000 mL, or 40 units on a U-100 syringe. Change any input above to see your own numbers.
Is tesamorelin FDA approved?
Yes. Tesamorelin is FDA-approved as Egrifta for reducing excess visceral abdominal fat in HIV-associated lipodystrophy. Use outside that indication is off-label. This tool is arithmetic only and not a recommendation.
What is tesamorelin's half-life?
Tesamorelin has a short plasma half-life (roughly 26-38 minutes), but it stimulates the body's own pulsatile growth-hormone release, so it is typically dosed once daily. The calculator handles the dose math; timing is a clinical decision.
How is tesamorelin different from sermorelin or CJC-1295?
All three are GHRH analogs that prompt natural GH release. Tesamorelin is the only one with a current FDA approval (Egrifta) and is stabilized against breakdown. For reconstitution, all are handled the same way.
How should reconstituted tesamorelin be stored?
Follow your product's storage instructions. Reconstituted vials are generally used promptly and kept cold. Regimio tracks a per-vial expiry countdown so you are not guessing.
Is this calculator exact?
Yes. It runs the arithmetic with no hidden rounding and shows the concentration to four decimal places, so the draw volume and units are precise.
Is this medical advice?
No. This calculator performs arithmetic on the values you enter. It does not recommend a dose, schedule, or source. Confirm anything you do with a qualified provider.
- 1Falutz J, et al. Metabolic effects of a growth hormone-releasing factor in patients with HIV. N Engl J Med. 2007;357:2359-2370. doi:10.1056/NEJMoa072375
- 2Tesamorelin compound summary. PubChem, US National Library of Medicine
This tool performs reconstitution arithmetic only. It is not medical advice and does not recommend any compound, dose, schedule, or source. Always follow guidance from a qualified provider. See our medical disclaimer.