Why Wegovy and Mounjaro Doses Cannot Simply Be Mapped to Each Other
Comparing doses across these two medicines is like comparing the markings on two entirely different measuring instruments — the numbers describe different things.
Different active substances, different mechanisms
Wegovy contains semaglutide, a GLP-1 receptor agonist. Mounjaro contains tirzepatide, a dual GIP and GLP-1 receptor agonist — meaning it acts on two appetite-regulating pathways rather than one. Because they act differently in the body, a milligram figure for one cannot be translated into a milligram figure for the other.
Different dose schedules
Wegovy is typically started at 0.25 mg once weekly and titrated up through 0.5 mg, 1 mg, 1.7 mg, and 2.4 mg — with each stage lasting several weeks as directed by a prescriber. Mounjaro commonly starts at 2.5 mg and steps up through 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg on a prescriber-led schedule. The numbers in each range are internal to that medicine's design. A Wegovy dose of 0.5 mg is not equivalent to a Mounjaro dose of 0.5 mg, and Wegovy 1.7 mg has no direct Mounjaro counterpart — the scales are simply not comparable.
What people are usually asking
Many people searching for an equivalent are trying to understand where they sit in their treatment, or what a switch between medicines might mean. That is a completely understandable question — but it is one your prescriber or doctor is best placed to answer, taking into account your full history and response to treatment. For more on how specific stages of each medicine relate in general terms, see how the 1 mg Wegovy dose compares in context and what the Wegovy range looks like alongside Mounjaro 5 mg. You can also explore what 1 mg Wegovy means within its own titration schedule for further context.
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
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Tracking Your Doses Accurately with GLP Trackr
Whichever medicine you have been prescribed — and wherever you are in the dose schedule — keeping a clear record of every injection is one of the most practical things you can do to stay on top of your treatment.
GLP Trackr's dose logging feature lets you record each weekly injection with the date, time, and dose strength, so you always have an accurate picture of your schedule. If you ever need to discuss your progress, timing, or how your current dose is going, that logged history gives you and your prescriber a reliable starting point rather than trying to recall details from memory. The app also sends dose reminders so a once-weekly injection is never accidentally missed — particularly useful during titration, when the schedule can feel new.
You can use GLP Trackr's doctor report feature to bring a clear, organised summary of your dose history to your next appointment — useful if you are at any point discussing whether your current dose is working for you, or whether a change might be considered.
For a broader look at how dose stages work on Mounjaro specifically, visit the Mounjaro dosing overview.
A note on dose decisions: GLP Trackr helps you record and organise your journey — it does not provide dosing guidance or advice on switching medicines. Any question about your dose, your titration schedule, or whether a different medicine might suit you should be discussed with your prescriber or doctor, who knows your full medical history. If you experience symptoms that concern you, contact your healthcare professional promptly.
Ready to keep a proper record of your treatment? Download GLP Trackr on the App Store or Google Play and start a free 7-day trial — your dose history, reminders, and progress all in one place.
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Morning Check-In
Start every day with a 60-second wellness check-in. Log how you're feeling, track nausea, appetite, energy, and mood — giving you and your care team a complete picture of how your medication is working.
Injection Tracking
Log every dose with a single tap. Track your dose history, phase in your cycle, estimated medication levels, and upcoming injection dates — with reminders so you never miss a scheduled shot.
Hydration Reminders
Staying hydrated is especially important on GLP-1 medications. Set daily water targets, log intake throughout the day, and receive smart nudges when you're falling behind your goal.
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Beautiful, easy-to-read charts show your weight loss trajectory, weekly nutrition trends, medication responses, and wellbeing scores over time — turning raw data into genuine insights.
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Snap a photo of any meal and get a full nutrition breakdown in seconds — calories, protein, carbs, fat, and fibre. No searching. No manual logging. Just point, snap, and track.
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Log walks, workouts, and movement with activity targets that flex with your energy levels. On lower-energy dose days, gentler targets keep you moving without burning out.
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Log your Mounjaro or Wegovy injection in seconds. Track your pen, your dose level, and your injection site — so you always know exactly where you are in your treatment.
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Frequently asked questions.
No direct equivalence exists. Wegovy (semaglutide) and Mounjaro (tirzepatide) act on different pathways and use entirely separate dose scales. The 2.4 mg figure is specific to Wegovy's titration design and cannot be mapped to a Mounjaro milligram figure. Your prescriber can advise on any comparison relevant to your situation.
The two medicines contain different active substances — semaglutide and tirzepatide respectively — and work via different mechanisms. Their dose ranges were developed independently, so the numbers on each scale describe different things. A milligram of one does not correspond to a milligram of the other.
Wegovy is typically titrated from 0.25 mg up to a maintenance dose of 2.4 mg over several months. Mounjaro is typically titrated from 2.5 mg up to 15 mg. Both schedules are prescriber-led and individual. The starting and ending numbers on each scale reflect that medicine's own design, not a shared reference point.
That decision is made by your prescriber based on your individual history, response to treatment, and clinical judgement. There is no standard conversion formula between the two medicines. Always follow your prescriber's guidance when changing medication rather than attempting to calculate an equivalent dose yourself.
Yes. GLP Trackr lets you log each injection with the date, dose strength, and medicine, so your full dose history is recorded in one place. This can be useful to review with your prescriber, whether you are on Wegovy, Mounjaro, or have switched between the two.
