Dual GIP/GLP-1 agonist
Compounded tirzepatide vials are typically 10 mg, 15 mg, or 30 mg. With 2 mL of bacteriostatic water, every standard titration dose lands on a clean unit mark on a U-100 syringe.
| Dose | 10 mg vial | 15 mg vial | 30 mg vial |
|---|---|---|---|
| 2.5 mg | 50units | 33.3units | 16.7units |
| 5 mg | 100units | 66.7units | 33.3units |
| 7.5 mg | over 100u | 100units | 50units |
| 10 mg | over 100u | over 100u | 66.7units |
| 12.5 mg | over 100u | over 100u | 83.3units |
| 15 mg | over 100u | over 100u | 100units |
Open the live calculator — change any value and the unit-mark math updates instantly.
Half-life ~5 days. Once-weekly injection. Plateau in 4-5 weeks at a fixed dose.
Refrigerate at 2-8°C after reconstitution. Use within 28 days per stability data.
Weight management, type 2 diabetes. Outperforms semaglutide head-to-head for weight loss. Titration: 2.5 → 5 → 7.5 → 10 → 12.5 → 15 mg weekly, 4 weeks per step.
The math on this page is correct for the listed vial and BAC-water volume. The decision to reconstitute and inject Tirzepatide belongs to you and a clinician who knows your full history — not to a webpage.
Tirzepatide most commonly ships as 10 mg or 15 mg or 30 mg of lyophilized powder. The standard reconstitution is 2 mL of bacteriostatic water, which yields clean unit-mark math on a U-100 insulin syringe for the doses used in most protocols.
The standard volume is 2 mL of bacteriostatic water. You can use more (easier to draw, lower concentration) or less (more concentrated, smaller draw volume) without changing the peptide itself — only the syringe math changes. The dose table on this page is pre-calculated for 2 mL.
Half-life ~5 days. Once-weekly injection. Plateau in 4-5 weeks at a fixed dose.
Refrigerate at 2-8°C after reconstitution. Use within 28 days per stability data.
Weight management, type 2 diabetes. Outperforms semaglutide head-to-head for weight loss. Titration: 2.5 → 5 → 7.5 → 10 → 12.5 → 15 mg weekly, 4 weeks per step.
U-100 insulin syringes (29–31 gauge, 8–13 mm needle) are standard for subcutaneous peptide injection. Each unit on a U-100 syringe equals 0.01 mL. The dose table above shows how many units to draw for each common dose, given the vial size and standard bacteriostatic water volume.