Why Mounjaro and Wegovy Doses Cannot Be Directly Compared
Tirzepatide (Mounjaro) is a dual GIP and GLP-1 receptor agonist, while semaglutide (Wegovy) acts on GLP-1 receptors only. Because they bind to different receptors and have different molecular structures, the numbers on the pen — milligrams of each active substance — do not map onto one another. A dose of one medicine cannot be converted into a "matching" dose of the other the way, say, two versions of the same drug might be compared.
How each titration schedule typically works
Mounjaro is commonly started at 2.5 mg once weekly, with the prescriber typically moving through 5 mg, 7.5 mg, 10 mg, 12.5 mg, and up to 15 mg over time, according to individual response. Wegovy follows its own schedule, typically beginning at 0.25 mg and stepping through 0.5 mg, 1 mg, 1.7 mg, and up to 2.4 mg. Each schedule is designed around the properties of its own active substance — not as a ladder that lines up with the other medicine's steps.
What about common comparisons people search for?
Searches like "what is 0.5 mg Wegovy equivalent to in Mounjaro", "what is 1.7 mg Wegovy equivalent to in Mounjaro", or "what is 2.4 mg Wegovy equivalent to in Mounjaro" are understandable — many people are curious about where they sit relative to the other medicine, or are considering switching. However, there is no published clinical conversion table that maps Wegovy doses to Mounjaro doses (or vice versa). If you are considering moving from one to the other, or have questions about where a given dose sits in your own treatment plan, your prescriber is the right person to ask — they will take your full history into account.
For a broader look at how 2.4 mg Wegovy relates to Mounjaro in general terms, see how the highest Wegovy dose compares to Mounjaro. You may also find it useful to read about what 1 mg Wegovy means in the context of Mounjaro, or explore the detail behind the 1 mg Wegovy and Mounjaro comparison.
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Frequently asked questions.
There is no established milligram-for-milligram equivalence between Mounjaro (tirzepatide) and Wegovy (semaglutide). They work through different receptors and follow separate titration schedules, so doses cannot be directly compared. Any switch between them should be guided by your prescriber or doctor.
No published clinical conversion maps 1.7 mg Wegovy to a specific Mounjaro dose. Because semaglutide and tirzepatide act on different receptors, the numbers are not interchangeable. If you are curious about switching or comparing your current dose, speak with your prescriber.
2.4 mg is the highest maintenance dose of Wegovy (semaglutide), but it does not correspond to a specific Mounjaro (tirzepatide) dose. The two medicines have different mechanisms and dose scales. Your prescriber is best placed to compare your treatment options based on your individual history.
0.5 mg is an early step in the Wegovy titration schedule, but there is no equivalent Mounjaro dose to point to. Tirzepatide and semaglutide follow separate schedules built around their own active substances. Only your prescriber can advise on how your dose compares or whether a switch is appropriate.
GLP Trackr lets you log each injection — date, dose strength, and time — for both Mounjaro and Wegovy. You can set weekly reminders, note any missed doses, and build a clear record to share with your prescriber. It is a tracking tool, not a source of dosing advice.