Understanding Prescription Weight Loss Injections
Mounjaro and Wegovy are the two prescription injectable medicines most commonly associated with weight management today. Mounjaro contains tirzepatide, a dual GIP and GLP-1 receptor agonist, while Wegovy contains semaglutide, a GLP-1 receptor agonist. Both are administered as a once-weekly subcutaneous injection using a pre-filled pen device.
These are not the same as cosmetic procedures, meal-replacement shakes, or over-the-counter weight loss aids. They are prescription-only medicines, meaning a qualified prescriber must assess your suitability before you can use them. GLP Trackr does not sell, supply, or source either medicine — if you have questions about access, your prescriber or doctor and a registered pharmacy in your country are the right places to start.
Common injection sites
Both medicines are typically injected into one of three areas: the abdomen, the front of the thigh, or the upper arm. Rotating between sites with each injection is generally recommended, as using the same spot repeatedly can cause localised skin reactions over time. Your prescriber or the patient information leaflet that came with your pen will give you guidance specific to your medicine.
Why consistency matters
Because these are weekly injections, keeping a reliable schedule matters. Missing a dose, injecting at the wrong site repeatedly, or losing track of where you are in your titration schedule can all affect how well the treatment works for you. Logging each injection — including the date, dose, and site — gives you a clear record to refer back to and to share with your prescriber.
For a broader overview of how injectable weight loss medicines work, visit our guide on weight loss injections. You may also find it useful to read about the best weight loss jabs or explore what makes a weight loss injection effective for an in-depth look at the topic.
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
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How GLP Trackr Helps You Stay Consistent With Your Injections
Staying on top of a weekly injection schedule is straightforward in theory, but easy to slip on in practice — especially when dose strengths change over time. GLP Trackr's injection-site tracking feature lets you log each site as you go (abdomen, thigh, or upper arm) and automatically suggests your next rotation, so you never have to remember where you injected last week.
Alongside site tracking, the app logs every dose — including the strength and the date — giving you a running record of your full injection history. When your dose is adjusted by your prescriber, the log updates with you. Dose reminders help make sure a weekly shot does not slip your mind, which is especially useful during the early weeks when the routine is still new.
Because every person's journey is different, GLP Trackr also lets you log side effects and how you are feeling after each injection. Over time, patterns emerge — information that is genuinely useful to bring to your next prescriber appointment. Our guide to the best weight loss injections explores this further if you want to read more.
Always follow the guidance of your prescriber or doctor — they know your full medical history and are the right person to advise on your dose, schedule, and any symptoms you experience. If anything feels severe, persistent, or worrying after an injection, contact your healthcare professional promptly. GLP Trackr helps you record what is happening so you can have better-informed conversations; it is not a substitute for clinical advice.
Ready to take the guesswork out of your injection schedule? GLP Trackr is free to try for 7 days — download it on the App Store or Google Play and let the app handle your site rotation and dose history from day one.
What does glptrackr include?
10+ powerful features. One app. Built specifically for Mounjaro and Wegovy users.
Everything your GLP-1 journey needs. Free to try for 7 days.
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.
You're Not on This Journey Alone.
Connect with thousands of real GLP-1 users sharing their wins, side effect tips, and meal ideas. Get the support of people who truly get it — because they're living it too.
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The Most Advanced GLP-1 Brain Ever Built.
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.
Knows Your Cycle
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.
Finds Your Golden Dose
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.
The two most widely prescribed injectable weight loss medicines in 2025 are Mounjaro (tirzepatide) and Wegovy (semaglutide). Both are prescription-only. Which is appropriate for you is a decision for your prescriber or doctor, based on your individual health history.
Both Mounjaro and Wegovy are typically injected into the abdomen, front of the thigh, or upper arm. Rotating the site with each injection is generally recommended. Your prescriber and the patient information leaflet included with your pen will provide guidance specific to your medicine.
Yes, rotating injection sites is generally recommended. Using the same spot repeatedly can cause localised skin changes or reactions over time. Keeping a log of which site you used last makes rotation easier — GLP Trackr tracks this automatically and suggests your next site.
GLP Trackr is built specifically for people on Mounjaro or Wegovy. It logs your injection site, dose strength, and date with each shot, suggests your next rotation, and stores your full injection history — all free to try for 7 days on the App Store and Google Play.
No. Mounjaro and Wegovy are prescription-only medicines. They must be assessed and prescribed by a qualified healthcare professional. GLP Trackr does not sell, supply, or source medication — for access, speak to your prescriber or doctor and a registered pharmacy in your country.