Dosage calculator

Tesamorelin Dosage Calculator: Reconstitution and Units

Quick answer

To calculate tesamorelin dosage, divide your target dose (mg) by the vial concentration. Concentration = vial mg ÷ BAC water mL. For a 5 mg vial with 2 mL BAC water: concentration is 2.5 mg/mL. A 0.5 mg dose equals 0.2 mL (20 U-100 units) on a standard insulin syringe.

Updated March 26, 2026
Reviewed by PeptideUniv Research Team
2 sources
Educational use · not medical advice

Tesamorelin Calculator Tool

Enter your vial strength, BAC water volume, and target dose below. The calculator outputs concentration (mg/mL), draw volume (mL), and U-100 units. Educational and research use only.

On this page

How to Calculate Tesamorelin Dosage

Three steps convert any vial and BAC water combination into the exact volume to draw on a U-100 insulin syringe.

Step 1 — Calculate concentration (mg/mL)
Divide the total peptide in the vial (mg) by the volume of BAC water you added (mL). For example: a 5 mg Tesamorelin vial reconstituted with 2 mL BAC water gives 5 ÷ 2 = 2.5 mg/mL.
Step 2 — Calculate draw volume (mL)
Divide your target dose (mg) by the concentration (mg/mL). For a 0.5 mg dose at 2.5 mg/mL: 0.5 ÷ 2.5 = 0.2 mL. This is the exact volume to draw into the syringe.
Step 3 — Convert to U-100 syringe units
Multiply the draw volume (mL) by 100. For 0.2 mL: 0.2 × 100 = 20 U-100 units. Read this number on the unit markings of a standard insulin syringe.

Dosage Formula

Concentration formula

Concentration (mg/mL) = Vial mg ÷ BAC water mL

Draw volume formula

Draw volume (mL) = Dose (mg) ÷ Concentration (mg/mL)

U-100 syringe units

U-100 units = Draw volume (mL) × 100

These three formulas apply to any Tesamorelin vial, regardless of size. U-100 is the standard insulin-syringe scale: 100 units = 1 mL.

Example Tesamorelin Calculations

Step-by-step worked examples using common vial sizes. Results are for illustrating the math only.

Example

5 mg vial + 2 mL BAC water, 0.5 mg dose

Given

Vial: 5 mg
BAC water: 2 mL
Target dose: 0.5 mg

Result

20 units

0.2 mL at 2.5 mg/mL

Concentration: 5 ÷ 2 = 2.5 mg/mL
Draw volume: 0.5 ÷ 2.5 = 0.2 mL
U-100 units: 0.2 × 100 = 20 units

Example

10 mg vial + 5 mL BAC water, 1 mg dose

Given

Vial: 10 mg
BAC water: 5 mL
Target dose: 1 mg

Result

50 units

0.5 mL at 2 mg/mL

Concentration: 10 ÷ 5 = 2 mg/mL
Draw volume: 1 ÷ 2 = 0.5 mL
U-100 units: 0.5 × 100 = 50 units

Example Tesamorelin Dosage Table

Common vial and BAC water combinations with calculated concentration, draw volume, and U-100 syringe units. For education only — verify your vial label before use.

Vial (mg)	BAC water (mL)	Concentration	Dose (mg)	Draw (mL)	U-100 units
5 mg	2 mL	2.5 mg/mL	0.25 mg	0.1 mL	10 units
5 mg	2 mL	2.5 mg/mL	0.5 mg	0.2 mL	20 units
5 mg	2 mL	2.5 mg/mL	1 mg	0.4 mL	40 units
10 mg	5 mL	2 mg/mL	1 mg	0.5 mL	50 units

Tesamorelin Reconstitution Guide

Tesamorelin is commonly supplied as a lyophilised powder in 5 mg or 10 mg vials. Reconstitution math depends on the total peptide in the vial and the amount of BAC water added.

Swab both vial stoppers with alcohol and allow them to dry.
Inject BAC water slowly along the glass wall rather than directly onto the powder.
Gently swirl until the solution is clear. Do not shake.
Store reconstituted tesamorelin refrigerated at 2–8 °C and verify use windows from your source material.

Important

For educational and research purposes only. Not medical advice. Consult a licensed healthcare professional before making any medical or health-related decisions.

Frequently Asked Questions

How do I calculate tesamorelin draw volume?

Divide the target dose (mg) by the concentration (mg/mL). For a 5 mg vial with 2 mL BAC water, the concentration is 2.5 mg/mL. A 0.5 mg dose equals 0.2 mL, which is 20 U-100 units.

What are U-100 syringe units?

U-100 is the standard scale for insulin syringes. 100 units = 1.0 mL. That means 10 units = 0.1 mL, 50 units = 0.5 mL. Multiply any draw volume in mL by 100 to get the U-100 units reading.

Do I need to recalculate if I change the amount of BAC water?

Yes. Changing BAC water volume changes the concentration (mg/mL), which changes the draw volume for the same mg dose. Always recalculate using: concentration = vial mg ÷ BAC water mL, then draw volume = dose mg ÷ concentration.

What is a common tesamorelin reconstitution example?

A common example is 5 mg plus 2 mL BAC water, which yields 2.5 mg/mL. At that concentration, every 0.1 mL equals 0.25 mg and every 0.2 mL equals 0.5 mg.

Does this page recommend a tesamorelin dose?

No. This calculator only converts your vial strength, BAC water volume, and target amount into mL and U-100 syringe units. It does not provide personalized dosing advice.

Sources & references

This page was reviewed against human tesamorelin trial data in HIV-associated abdominal fat accumulation and standard vial-conversion math. The examples explain measurement only and do not replace labeled product instructions.

Effect of tesamorelin on visceral fat and liver fat in HIV-infected patients with abdominal fat accumulation: a randomized clinical trialRandomized clinical trial frequently cited for VAT and liver-fat outcomes.
Long-term safety and effects of tesamorelin, a growth hormone-releasing factor analogue, in HIV patients with abdominal fat accumulationLonger-duration safety and body-composition follow-up in a human population.

Reviewed by PeptideUniv Research Team · Updated March 26, 2026