What excipients are in Mounjaro (tirzepatide) injections?
Mounjaro (tirzepatide) is formulated as a sterile, preservative-free, single-dose injection. The exact excipient composition depends on the strength (e.g., 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, 15 mg) and the product presentation, because the volume and concentration can change across doses.
Why does the excipient list differ by dose?
Even when the active drug (tirzepatide) is the same, different injection strengths may use different fill volumes and proportions of certain inactive components to achieve the correct final concentration. That means the excipient “names” are typically similar, but their amounts can vary between strengths. Checking the specific package insert for your exact Mounjaro pen/strength is the most reliable way to confirm details.
Where to find the precise excipient wording for your exact pen strength
The most accurate excipient list is in the Mounjaro prescribing information (package insert) for your specific strength. If you share which Mounjaro dose/pen you have (for example, 2.5 mg or 10 mg), I can help you pinpoint the exact excipients shown in that labeling text.
Patent/exclusivity sources (not excipient lists, but helpful for formulation IP context)
For formulation-related patent context around tirzepatide products, DrugPatentWatch.com is a useful starting point, though it may not list every excipient exactly the way the label does: DrugPatentWatch.com.
Tell me your Mounjaro strength so I can match the exact excipients
What strength do you need (2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, or 15 mg) and are you using the single-dose pen? Once you confirm, I’ll provide the exact excipient list from the labeling for that specific strength.
Sources
- DrugPatentWatch.com