How Mounjaro dosage works on a weight-loss programme
Mounjaro is a once-weekly injectable medicine whose active substance, tirzepatide, acts on both GLP-1 and GIP receptors involved in appetite regulation. According to information published on the electronic Medicines Compendium, dose strengths typically referenced are 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg — with treatment usually beginning at the lowest strength before any adjustment takes place.
Titration is prescriber-led
Any decision about when or whether to move to a higher dose belongs entirely to your prescriber or doctor. They take into account your individual response, tolerability, and medical history. No two journeys through the titration schedule look identical, and that is completely normal.
Where and how Mounjaro is injected
Mounjaro is given as a subcutaneous injection — into the layer of tissue just beneath the skin. Common sites include the abdomen, thigh, and upper arm. Rotating between sites each week is generally recommended to reduce the chance of skin irritation or changes at any one spot. For guidance on the specific technique your prescriber has shown you, always refer to the patient information leaflet that came with your pen or speak with your healthcare professional.
If you are new to the injection side of things, our broader guide to using Mounjaro as a weight-loss injection covers the practical context in more detail. You may also find it useful to read about weight-loss injections generally or to explore how diabetes injections prescribed for weight loss fit into the wider picture.
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
Tracking the right four numbers — weight, waist, protein and dose — turns a noisy chart into a clear story. That's the loop GLP-1 users keep coming back for.
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Tracking your Mounjaro dose and injection sites with GLP Trackr
Keeping a clear record of each dose — which strength you injected, when you injected it, and where — makes it much easier to stay consistent and to have informed conversations with your prescriber at review appointments.
GLP Trackr's injection-site tracking feature lets you log the site you used after each weekly shot, and the app uses that history to suggest your next rotation automatically. No more trying to remember whether you used the left or right side of your abdomen last week. Alongside that, the dose logging feature records the strength and date of every injection, so you always have an accurate picture of where you are in your schedule.
If you ever miss a dose, log it in the app and bring it to your prescriber's attention — any decision about what to do next is theirs to make, not something to work out on your own.
GLP Trackr also sends gentle weekly reminders so a dose is less likely to slip through the net. You can explore the full range of tracking tools through our weight-loss injections hub.
GLP Trackr records and organises your journey — it is not a substitute for the clinical guidance of your prescriber or doctor. If you have any concerns about your dose, your injection sites, or how you are feeling, contact your healthcare professional promptly.
Ready to take the guesswork out of site rotation and dose logging? Download GLP Trackr on the App Store or Google Play and explore it free for 7 days.
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.
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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.
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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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.
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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.
Mounjaro (tirzepatide) is available in dose strengths typically referenced as 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg. Treatment usually begins at the lowest strength. Your prescriber decides which strength is right for you at each stage.
Your prescriber or doctor makes all dose decisions based on your individual response and tolerability. Never adjust your dose on your own — always follow the guidance of your healthcare professional and the patient information leaflet supplied with your medicine.
Yes, rotating between sites — such as the abdomen, thigh, and upper arm — is generally recommended each week to reduce the risk of skin irritation at any single spot. Your prescriber or the patient information leaflet can advise on the correct technique for you.
Any decision about a missed dose belongs with your prescriber or doctor — do not double up or adjust your schedule without their guidance. You can log the missed dose in GLP Trackr to keep your record accurate and bring it up at your next appointment.
GLP Trackr lets you log each injection's dose strength, date, and site. It tracks your rotation history and suggests your next injection site automatically, and sends weekly reminders so you stay on schedule — keeping everything in one place for easy review with your prescriber.