What the Switch from Mounjaro to Wegovy Actually Involves
Mounjaro (tirzepatide) and Wegovy (semaglutide) are both once-weekly injectable medicines prescribed for weight management, but they act on different receptor pathways. Mounjaro targets both GIP and GLP-1 receptors; Wegovy targets GLP-1 receptors only. Because of this difference, there is no straightforward dose conversion — a dose of Mounjaro does not translate directly to an equivalent dose of Wegovy.
People sometimes search for a "mounjaro to wegovy conversion" or ask how 7.5 mg Mounjaro compares to a Wegovy dose. The honest answer is that no standard public conversion table exists, and any dose decision when changing from one medicine to the other is something your prescriber determines based on your individual circumstances. This is true whether you are on 7.5 mg, 10 mg, or any other Mounjaro strength.
Why someone might switch
There are various reasons a prescriber might move someone from Mounjaro to Wegovy — availability, tolerability, clinical preference, or changes in individual health factors. If you are considering asking about swapping, the right starting point is a conversation with your prescriber or doctor, not a self-directed change.
What to expect during a transition
When changing between these two medicines, it is common for prescribers to start the new medicine at a lower dose and titrate up gradually, rather than picking up at the equivalent strength. Side-effect patterns may also differ, since the medicines act slightly differently. Keeping a clear record of how you feel during any transition is genuinely useful — both for your own awareness and for your next prescriber appointment.
For more detail on the practical and clinical side of this change, see our guides on what changing from Mounjaro to Wegovy involves and swapping from Mounjaro to Wegovy. You can also find broader context in our Mounjaro information hub.
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
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Tracking a Medicine Switch with GLP Trackr
One of the most practical things you can do when switching medicines is keep a clear log — and that is exactly where GLP Trackr helps. The app's dose logging feature lets you record each injection with the medicine name, dose strength, date, and time, so your history is in one place whether you were on Mounjaro, have moved to Wegovy, or are mid-transition.
Equally useful during a switch is the side-effect tracker. Because your body is adjusting to a different medicine, symptoms like nausea, fatigue, or digestive changes may appear or shift in pattern. Logging these in the app lets you spot trends over time and brings a clear, dated record to your next prescriber conversation — far more useful than trying to recall how you felt three weeks ago.
The app also generates a doctor report — a summary of your logged journey — which can be a practical tool when discussing how the transition is going with your healthcare team.
If you want a fuller picture of the Mounjaro to Wegovy transition process, our page on changing from Mounjaro to Wegovy covers additional ground worth reading alongside this one.
Important: any decision about switching medicines, when to start Wegovy, or what dose to begin at should be made with your prescriber — never on your own. GLP Trackr supports your journey by helping you track it; it is not a substitute for clinical guidance. If you experience symptoms that are severe, persistent, or worrying at any point, contact your healthcare professional promptly.
Log your doses, track how you feel, and take that record into your appointments. GLP Trackr is free to try for 7 days — available on the App Store and Google Play.
What does glptrackr include?
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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.
Smart Meal Planning
Personalized meal plans built around your current dose phase and side effects. Every meal is GLP-1 optimized — high in protein, gentle on the stomach, and scaled to your reduced appetite.
Recipe Library
Browse 50+ high-protein, GLP-1-friendly recipes filtered by meal type, prep time, and dietary needs. Every recipe includes full nutrition info, step-by-step instructions, and tips for eating with side effects.
Progress Analytics
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.
AI Meal Scanning
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.
Exercise & Steps
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.
Community Support
Connect with thousands of others navigating the same medication journey. Share milestones, ask questions, find accountability partners, and get support from people who truly understand.
Never Forget a Dose Again.
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.
Watch Your Body Transform, Week by Week.
Log your weight, measurements, and how you're feeling after each dose. GLPTrackr turns your data into clear, motivating charts that show you how far you've really come.
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The first AI built exclusively for GLP-1 weight loss. Every insight, every meal plan, every prediction trained on one thing only: helping you get the most out of your medication.
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GLPIQ tracks where you are in your injection cycle and adjusts everything around it: lighter meals on nausea days, higher protein when appetite returns, and smarter targets as your medication level shifts.
Predicts Before You Feel It
GLPIQ learns your personal side effect patterns over time. After a few cycles, it starts warning you the morning before a rough day — and adjusts your meal plan automatically.
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GLPIQ analyses every dose you've been on: weight loss rate, side effects, food noise, mood, protein adherence and tells you which dose gave you the best results. No other app does this.
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Frequently asked questions.
No — switching from Mounjaro to Wegovy is a decision for your prescriber or doctor. They will determine whether a switch is appropriate and what dose of Wegovy to start at. Changing medicines without clinical guidance is not recommended.
There is no established like-for-like conversion between Mounjaro doses and Wegovy doses. The two medicines act on different receptor pathways. Your prescriber will decide the appropriate starting dose of Wegovy based on your individual circumstances.
Side effects and appetite changes may differ between the two medicines. Many people find their prescriber starts them at a lower Wegovy dose and increases gradually. If you notice new or changed symptoms, log them and discuss with your healthcare professional.
GLP Trackr lets you log doses from both medicines, track side effects day by day, and generate a report to share with your prescriber. This gives you a clear, dated record of how the transition is going — useful for appointments and spotting patterns.
Reasons can include medicine availability, individual tolerability, or clinical factors specific to the person. The decision is made by the prescriber based on the individual's health history and circumstances — not something to self-determine.