Tirzepatide Dosing Calculator
Vial size, bacteriostatic water, and dose — converted to insulin-syringe units, pre-loaded with Tirzepatide's documented doses.
Typical dose: 2.5 mg, titrated to 12.5-15 mg · once weekly
Tirzepatide documented dose levels
| Phase | Dose | Frequency |
|---|---|---|
| First 4 weeks | 2.5 mg | Once weekly |
| Increase by 2.5 mg after at least 4 weeks at each dose | 5-10 mg | Once weekly |
| Ongoing maintenance | 12.5-15 mg | Once weekly |
Reconstitution quick reference
A 5 mg vial at a 7,500 mcg dose of Tirzepatide, by how much bacteriostatic water you add:
| Bacteriostatic water | Concentration | U-100 syringe units per dose |
|---|---|---|
| 1 mL | 5 mg/mL | 150 units |
| 2 mL | 2.5 mg/mL | 300 units |
| 3 mL | 1.667 mg/mL | 450 units |
Different vial size or dose? The calculator above handles any combination.
Tirzepatide dosing questions
What is a typical Tirzepatide dose?
2.5 mg, titrated to 12.5-15 mg · once weekly
How many insulin-syringe units is a Tirzepatide dose?
With a 5 mg vial reconstituted with 2 mL of bacteriostatic water, a 7,500 mcg dose measures 300 units on a U-100 insulin syringe. The calculator above recomputes this for your own vial size, water volume, and dose.
How often is Tirzepatide taken?
Once weekly
Educational information only — not medical advice. Always consult a qualified healthcare provider.