How to reconstitute tirzepatide
Combining bacteriostatic water with a Tirzepatide vial, step by step, and the units that each dose equals after mixing.
- vial sizes for sale
- 10 mg, 15 mg, 20 mg, 30 mg, 40 mg, 50 mg, 60 mg, 100 mg, 120 mg
- Adding water to 10 mg yields 5 mg/mL
- 2 mL
- bac water once opened
- 28 days
Step-by-step: how to mix Tirzepatide
- After washing your hands, use an alcohol swab to wipe the peptide vial, the bacteriostatic water and both rubber stoppers.
- Draw the water that you chose into the syringe. Adding 2 mL to a 10 mg vial gives 5 mg per mL.
- Angle the needle a little and push it through the stopper; let the water run slowly along the inner wall of the vial.
- Between your hands, roll the vial gently until the powder is gone. Don't shake it.
- Mark the vial with the mix date and store it as your product or prescription directs.
- Find your dose in units, then draw to that line.
Chart for Tirzepatide reconstitution
| Vial | Water added | Strength | Units for a sample dose |
|---|---|---|---|
| 10 mg | 1 mL | 10 mg/mL | 2.5 units for 250 mcg |
| 10 mg | 2 mL | 5 mg/mL | 5 units for 250 mcg |
| 10 mg | 3 mL | 3.333 mg/mL | 7.5 units for 250 mcg |
| 15 mg | 1 mL | 15 mg/mL | 6.7 units for 1 mg |
| 15 mg | 2 mL | 7.5 mg/mL | 3.3 units for 250 mcg |
| 15 mg | 3 mL | 5 mg/mL | 5 units for 250 mcg |
| 20 mg | 1 mL | 20 mg/mL | 5 units for 1 mg |
| 20 mg | 2 mL | 10 mg/mL | 2.5 units for 250 mcg |
| 20 mg | 3 mL | 6.667 mg/mL | 3.8 units for 250 mcg |
| 30 mg | 1 mL | 30 mg/mL | 3.3 units for 1 mg |
| 30 mg | 2 mL | 15 mg/mL | 6.7 units for 1 mg |
| 30 mg | 3 mL | 10 mg/mL | 2.5 units for 250 mcg |
| 40 mg | 2 mL | 20 mg/mL | 5 units for 1 mg |
| 40 mg | 3 mL | 13.333 mg/mL | 7.5 units for 1 mg |
| 40 mg | 5 mL | 8 mg/mL | 3.1 units for 250 mcg |
| 40 mg | 10 mL | 4 mg/mL | 6.2 units for 250 mcg |
Unit amounts for your Tirzepatide dose
What appears on the label
Mounjaro and Zepbound are FDA-approved (Lilly's prefilled pens and vials); compounded vials and vials for research are not FDA-approved. Each branded pen and vial includes its own instructions, which take priority over general steps.
Questions people often ask
How much bacteriostatic water do I need for 10 mg of Tirzepatide?
There isn't one right amount. With 2 mL, you get 5 mg per mL. More water weakens each unit, so small doses are easier to draw.
Can I mix Tirzepatide with sterile water?
Because sterile water contains no preservative and is single use, a mixed vial that you draw from over days is usually prepared with bacteriostatic water. Read about bacteriostatic water vs sterile water.