Reconstituting Tirzepatide | Math, Calculator, and Proper Handling (Step-by-Step Guide)

What You'll Need

• Tirzepatide vial (5mg, 10mg, or 15mg)
• Bacteriostatic water (BAC water)
• Alcohol swabs
• Sterile syringes (insulin syringes recommended)
• Proper storage container

Understanding Tirzepatide Reconstitution

Tirzepatide is a dual GIP/GLP-1 receptor agonist that requires proper reconstitution to maintain its effectiveness. The peptide comes in lyophilized (freeze-dried) powder form and must be mixed with bacteriostatic water before use. Proper technique is essential for maintaining peptide stability and calculating accurate doses.

Step-by-Step Reconstitution Process

Step 1: Prepare Your Workspace

Clean your work surface thoroughly and wash your hands. Gather all necessary supplies. Ensure your Tirzepatide vial and bacteriostatic water have been stored at proper refrigeration temperatures (2-8°C or 36-46°F).

Step 2: Calculate Your Reconstitution Ratio

Decide on your bacteriostatic water amount based on your desired concentration:

• For 5mg vial: Add 2ml BAC water = 2.5mg/ml concentration
• For 10mg vial: Add 2ml BAC water = 5mg/ml concentration
• For 15mg vial: Add 3ml BAC water = 5mg/ml concentration

Use a peptide reconstitution calculator to determine your exact dosing per injection based on your protocol.

Step 3: Clean the Vial Tops

Remove the plastic caps from both the Tirzepatide vial and bacteriostatic water vial. Thoroughly clean the rubber stoppers with alcohol swabs. Let them air dry for 30 seconds.

Step 4: Draw Bacteriostatic Water

Using a sterile syringe, draw the calculated amount of bacteriostatic water. Remove any air bubbles by gently tapping the syringe and pushing the plunger until only liquid remains.

Step 5: Add Water to Tirzepatide Vial

Insert the needle through the rubber stopper of the Tirzepatide vial at a slight angle. SLOWLY inject the bacteriostatic water down the side of the vial, not directly onto the powder. This gentle technique prevents foaming and peptide degradation.

Step 6: Mix Gently

Do NOT shake the vial. Instead, gently swirl or roll the vial between your hands until the powder completely dissolves. This may take 1-3 minutes. The solution should be clear with no visible particles.

Step 7: Store Properly

Once reconstituted, immediately place the vial in the refrigerator (2-8°C or 36-46°F). Label the vial with the reconstitution date and concentration. Use within 28 days of reconstitution.

Dosing Calculations

To calculate your injection amount:

1. Determine your prescribed dose (e.g., 2.5mg)
2. Divide by your concentration (e.g., 2.5mg ÷ 5mg/ml = 0.5ml)
3. Convert to units if using insulin syringes (0.5ml = 50 units on a U-100 syringe)

Important Safety Tips

• Never use expired peptides or bacteriostatic water
• Always use sterile technique
• Dispose of needles properly in a sharps container
• If the solution appears cloudy or contains particles, do not use it
• Store reconstituted Tirzepatide in the refrigerator, never freeze
• Rotate injection sites to prevent tissue damage