Understanding Weight-Loss Injections and How They Are Prescribed
Mounjaro and Wegovy are prescription-only injectable medicines used for weight management. They are administered once a week using a pre-filled pen, and whether they are provided at no direct cost to you depends entirely on your country, your healthcare system, and the terms of your prescription — something only your prescriber or doctor can clarify for your specific situation.
What these injections involve
Both medicines are injected subcutaneously (just beneath the skin) once per week. Common injection sites include the abdomen, the front of the thigh, and the upper arm. Rotating between these sites with each injection is generally recommended to allow the skin and tissue to recover and to reduce the chance of reactions at any single spot.
Why rotation matters
Using the same injection site repeatedly can lead to localised skin changes and may affect how the medicine is absorbed. A simple rotation pattern — moving around the abdomen, then to a thigh, then to the upper arm — helps distribute the injections more evenly over time. Your prescriber or doctor, along with the patient information leaflet that comes with your pen, is the best source of guidance on technique specific to your medicine.
For more background on how these injections work and what to expect, see our overview of weight-loss injections or explore how injections for weight loss are used in practice.
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
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How GLP Trackr Helps You Stay on Top of Your Injections
Once you are prescribed a weekly injection, keeping track of where you last injected and when your next dose is due becomes a surprisingly easy thing to lose track of — especially week after week. GLP Trackr's injection-site tracking feature is built specifically for this: log each injection with the site you used, and the app keeps a rotation history so it can suggest where to inject next. No more trying to remember whether last week was the left thigh or the right side of your abdomen.
Alongside site rotation, the app logs your dose strength and the date and time of each injection, so you always have a clear record of where you are in your treatment schedule. Gentle dose reminders mean a weekly injection is much less likely to slip your mind.
If you notice anything at an injection site — redness, swelling, or discomfort — the side-effect logging feature lets you record it and track whether it changes over time, giving you something concrete to discuss at your next prescriber appointment.
You can find more detail on managing your weekly injections in our guides on fat injections for weight loss and practical tips for weight-loss injections.
If anything at an injection site seems severe, persists, or concerns you, contact your healthcare professional promptly. GLP Trackr helps you record what you observe — it is not a substitute for clinical advice, and any questions about your injection technique or schedule should be directed to your prescriber or doctor.
Ready to take the guesswork out of injection-site rotation? GLP Trackr lets you log every shot and tracks your rotation history automatically. It is free to try for 7 days — available now on the App Store and Google Play.
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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.
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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.
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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.
Whether prescribed weight-loss injections are provided at no direct cost depends on your country and healthcare programme. Only your prescriber or doctor can advise on what is available to you under your specific circumstances.
These medicines are typically injected subcutaneously into the abdomen, front of the thigh, or upper arm. Rotating between sites each week is generally recommended. Your patient information leaflet and prescriber are the best guides for your specific medicine.
Rotating injection sites helps prevent localised skin reactions and supports consistent medicine absorption. Using the same spot repeatedly can cause tissue changes over time. Your prescriber or the leaflet with your pen can advise on a suitable rotation pattern.
GLP Trackr logs each injection — including the site used, dose strength, and date — and tracks your rotation history so it can suggest where to inject next. It also sends dose reminders so your weekly schedule stays on track.
Log what you observe in GLP Trackr so you have a record to share with your prescriber. If a reaction is severe, persistent, or worrying, contact your healthcare professional promptly rather than waiting for your next scheduled appointment.