Tirzepatide Mixing Chart: Reconstitution Reference Guide
What this chart does: Shows how much bacteriostatic water (BAC water) to add to your tirzepatide powder vial to achieve your target concentration, and what dose volume to draw for common weekly doses.
Tirzepatide Reconstitution Chart by Vial Size
| Vial Size | BAC Water to Add | Resulting Concentration | Solution Volume |
|---|---|---|---|
| 5mg vial | 1mL | 5mg/mL | 1mL total |
| 5mg vial | 2mL | 2.5mg/mL | 2mL total |
| 10mg vial | 1mL | 10mg/mL | 1mL total |
| 10mg vial | 2mL | 5mg/mL | 2mL total |
| 15mg vial | 1.5mL | 10mg/mL | 1.5mL total |
| 20mg vial | 2mL | 10mg/mL | 2mL total |
💡 Use our dose calculator to convert any mg dose to the exact units (on an insulin syringe) or mL to draw based on your vial concentration.
Draw Volume Chart — 5mg/mL Concentration
| Weekly Dose | Draw Volume (mL) | On Insulin Syringe (units) |
|---|---|---|
| 2.5mg | 0.5mL | 50 units |
| 5mg | 1.0mL | 100 units |
| 7.5mg | 1.5mL | 150 units |
| 10mg | 2.0mL | 200 units |
| 12.5mg | 2.5mL | 250 units |
| 15mg | 3.0mL | 300 units |
Draw Volume Chart — 10mg/mL Concentration
| Weekly Dose | Draw Volume (mL) | On Insulin Syringe (units) |
|---|---|---|
| 2.5mg | 0.25mL | 25 units |
| 5mg | 0.5mL | 50 units |
| 7.5mg | 0.75mL | 75 units |
| 10mg | 1.0mL | 100 units |
| 12.5mg | 1.25mL | 125 units |
| 15mg | 1.5mL | 150 units |
Step-by-Step Mixing Instructions
- Wash hands thoroughly before handling vials or syringes
- Wipe both vial tops (tirzepatide powder and BAC water) with an alcohol swab and let dry
- Draw your target amount of BAC water into a syringe
- Inject the BAC water slowly down the side of the tirzepatide vial — do not spray directly onto the powder
- Do not shake — gently swirl until the powder is fully dissolved
- The solution should be clear and colorless — discard if cloudy or particulate
- Label your vial with the date mixed and concentration
- Refrigerate immediately
⚠ Always use bacteriostatic water — not sterile water for injection. Bacteriostatic water contains benzyl alcohol which prevents bacterial growth and extends the vial's beyond-use date.
See also: Tirzepatide Reconstitution Full Guide · Units Conversion Chart
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