Mounjaro Conversion Chart: Understanding the Dose Stages

Mounjaro is a once-weekly injectable medicine whose active substance, tirzepatide, acts on both GLP-1 and GIP receptors to support appetite regulation. It is typically started at a low dose and moved upward gradually — a process called titration — to allow the body to adjust and to minimise side effects. The titration schedule is always directed by the prescriber; the information below is factual context, not a dosing instruction.

The commonly referenced dose strengths

• 2.5 mg — the usual starting dose, intended to help the body adapt
• 5 mg — the first step up after the introductory period
• 7.5 mg
• 10 mg
• 12.5 mg
• 15 mg — the highest available strength

Each step up is made at the prescriber's discretion and based on individual response and tolerability — not on a fixed universal timetable. Some people remain at a particular strength for longer than others, and that is entirely normal.

Comparing Mounjaro and Wegovy doses

A common reason people search for a conversion chart is to understand how Mounjaro doses relate to those of Wegovy (semaglutide), or to make sense of switching between the two. Because tirzepatide and semaglutide are different active substances with different mechanisms, there is no simple milligram-for-milligram equivalence — the numbers are not directly comparable. If you are curious about how the two medicines differ, the Wegovy vs Mounjaro factual comparison covers this in more detail.

For people specifically looking at the crossover between semaglutide-based Ozempic and Mounjaro, the Ozempic to Mounjaro dose conversion guide and the Wegovy to Mounjaro conversion overview explore the topic in a similarly factual, non-prescriptive way. Any actual switching decision is a clinical one — speak with your prescriber or doctor before making any change.

For a broader introduction to Mounjaro, including how it works and what to expect, visit the Mounjaro overview hub.

Keeping a clear record of every dose you take — including the strength, date, and time — is one of the most practical things you can do while on a titration schedule. GLP Trackr's dose logging feature lets you record each injection as you go, so you always have an accurate history of where you are in your journey rather than relying on memory.

That log becomes particularly useful at prescriber appointments: you can see at a glance which dose you are on, how long you have been on it, and how your body has responded over time. The app's dose reminder feature also means a weekly injection is much less likely to be forgotten — which matters because consistency is an important part of how this medicine works.

If you ever miss a dose, log it in the app and discuss with your prescriber or doctor what to do next — dose decisions always belong with them, not with an app or a chart.

GLP Trackr is available free to try for 7 days on the App Store and Google Play. Log your doses, set your weekly reminder, and bring a clear record to your next appointment — all in one place.

Always follow your prescriber or doctor's guidance on your dose schedule — they know your full medical history and are best placed to advise on any changes. If you experience symptoms that feel severe or persistent, contact your healthcare professional promptly.