Tirzepatide (40 mg / 50 mg Large Vials)
Maintenance dosing protocol for large vials
Quick Reference
Overview
Large vials are intended for researchers at or near maintenance dose. The titration schedule remains unchanged — see the standard protocol above. At 6.67 mg/mL: 1 unit = 0.01 mL = 66.7 mcg on a U-100 insulin syringe. At 15 mg/week, one 40 mg vial covers ~2.7 weeks; one 50 mg vial covers ~3.3 weeks.
Dosing & Reconstitution Guide
| Phase | Daily Dose | Units | Volume |
|---|---|---|---|
| Maintenance | 5 mg | 75 units | 0.75 mL |
| Maintenance | 7.5 mg | 113 units | 1.13 mL* |
| Maintenance | 10 mg | 150 units | 1.50 mL* |
| Maintenance | 15 mg | 225 units | 2.25 mL* |
Reconstitution Instructions
Draw 6.0 mL (40 mg vial) or 7.5 mL (50 mg vial) bacteriostatic water with a sterile syringe (fill in multiple passes if needed).
Inject slowly down the vial wall in increments; avoid foaming.
Gently swirl/roll until fully dissolved (do not shake).
Label with reconstitution date and refrigerate at 2–8 °C, protected from light. Use within 28 days.
This guide is for educational purposes only and is not medical advice. For research use only. Not for human consumption.
Supplies Needed
- ✓Peptide Vials (Tirzepatide, 40 mg or 50 mg): 4–5 vials at 15 mg/week
- ✓3 mL Syringes: 12 syringes
- ✓Bacteriostatic Water (10 mL): 1 bottle per vial
- ✓Alcohol Swabs: 24 swabs
Dosing Protocol
Schedule
Inject once weekly subcutaneously. These large vials are for researchers already at maintenance dose.
Cycle Structure
Continue at maintenance dose as per standard tirzepatide protocol. GI tolerance remains the primary consideration.
Timing
Consistent weekly day. All maintenance doses require a 3 mL syringe. Rotate injection sites.
Storage & Handling
- ✓Lyophilized: Store at −20 °C (−4 °F) in dry, dark conditions; minimize moisture exposure.
- ✓Reconstituted: Refrigerate at 2–8 °C (35.6–46.4 °F); avoid freeze–thaw cycles.
- ✓Allow vials to reach room temperature before opening to reduce condensation uptake.
- ✓Do not freeze reconstituted solution.
- ✓Discard if solution becomes cloudy or contains visible particles.
Important Notes
- ✓All products sold by JA Performance Peptides are intended strictly for laboratory research purposes and are not approved for human consumption, veterinary use, or therapeutic application. Not for human use.
- ✓Use new sterile insulin syringes for each injection; dispose in a sharps container.
- ✓Rotate injection sites (abdomen, thighs, upper arms) to reduce local irritation.
- ✓Inject slowly; wait a few seconds before withdrawing the needle.
- ✓Document daily dose and site rotation to maintain consistency.