Tirzepatide Reconstitution Calculator
Tirzepatide is a GLP-1 / GIP dual receptor agonist. This page shows how to reconstitute it and read the result on a syringe — the calculator does the arithmetic for you.
Status: The prescription products Mounjaro and Zepbound are FDA-approved; research-chem tirzepatide is not the approved product and is not for human use.
The math
Concentration = vial ÷ water · Units = (dose ÷ concentration) × 100
Tirzepatide is commonly sold in higher-strength research vials, which makes the chosen water volume especially important for landing on readable draws.
Worked example
Illustrative numbers only — not a dose recommendation.
Example
Vial10 mg
Bacteriostatic water2 mL
Concentration5 mg/mL
Each 10 units (0.1 mL) contains500 mcg
How to use the calculator
- Open the calculator and enter your Tirzepatide vial size.
- Enter your bacteriostatic water volume, then your dose.
- Read off the units to draw and doses per vial.
Planning a full cycle? Work out vials, syringes & swabs →
Frequently asked questions
How do I reconstitute Tirzepatide?
Add bacteriostatic water to the lyophilized vial to reach a concentration you can measure. For example, 10 mg in 2 mL of water gives 5 mg/mL, so each 10 units (0.1 mL) on a U-100 syringe contains about 500 mcg of Tirzepatide. Swirl gently rather than shaking.
How many units of Tirzepatide do I draw?
Divide your intended dose by the concentration to get the volume in mL, then multiply by 100 for a U-100 syringe. The calculator does this automatically once you enter your vial size, water volume and dose.
What vial sizes does Tirzepatide come in?
Tirzepatide is commonly supplied as 5 mg, 10 mg, 15 mg, 30 mg, 60 mg. The amount in the vial does not change with how much water you add — water only sets the concentration.
Is Tirzepatide approved for human use?
The prescription products Mounjaro and Zepbound are FDA-approved; research-chem tirzepatide is not the approved product and is not for human use. This calculator only performs arithmetic on the numbers you enter and does not recommend any dose.