Mounjaro 90-Day Supply Ordering
For a 90-day supply of Mounjaro, order 12 pens (or 12 vials if using the vial formulation).
Dosing Schedule
Mounjaro (tirzepatide) is administered once weekly 1. Since there are approximately 13 weeks in a 90-day period, you need:
- 12-13 pens for a true 90-day supply
- Standard packaging comes in boxes of 4 single-dose pens 1
Practical Ordering Approach
Order 3 boxes (12 pens total) to cover a 90-day period. This provides 12 weekly doses, which covers approximately 84 days. Most insurance plans and pharmacies structure 90-day supplies this way.
If you need to cover the full 13 weeks (91 days), you would technically need 13 pens, but standard practice is to order in multiples of the 4-pen boxes.
Available Formulations
Each box contains 4 single-dose prefilled pens in the following strengths 1:
- 2.5 mg/0.5 mL
- 5 mg/0.5 mL
- 7.5 mg/0.5 mL
- 10 mg/0.5 mL
- 12.5 mg/0.5 mL
- 15 mg/0.5 mL
Vial option: Single-dose vials are also available in the same strengths (requires separate needles and syringes) 1.
Dose Escalation Considerations
Most patients (84.1%) initiate at ≤5 mg doses 2. During the first 6 months, 69.6% of patients have at least one dose escalation, with mean time to first escalation of 59.1 days 2. When ordering a 90-day supply, consider whether the patient will remain on the same dose throughout or require dose titration, which would necessitate ordering different strength boxes.