What You Should Know About GLP-1 Weight Loss Injections
Mounjaro and Wegovy are once-weekly injectable medicines, each supplied as a pre-filled pen. Mounjaro contains tirzepatide, which acts on both GIP and GLP-1 receptors. Wegovy contains semaglutide, a GLP-1 receptor agonist. Both are typically started at a low dose and adjusted over time — any change to your dose is a decision made by your prescriber, not something to alter on your own.
Who prescribes weight loss injections?
These medicines are prescribed by doctors and other qualified healthcare professionals who can assess whether they are appropriate for you. Suitability depends on individual health factors including weight, medical history, and any other medicines you take. If you are already prescribed one of these medicines, your prescriber has already made that assessment for your circumstances. For a fuller look at eligibility considerations, see our page on BMI criteria for weight loss injections.
How weight loss injections are delivered
Both medicines are injected under the skin — a process called subcutaneous injection — typically into the abdomen, thigh, or upper arm. Rotating between sites each week is generally recommended to allow each area to recover and to reduce the chance of localised skin reactions. Your prescriber or the patient information leaflet supplied with your pen is the right place to confirm the technique and sites recommended for your specific medicine.
Cost and access: what to realistically expect
The cost of weight loss injections varies depending on where you live, how your healthcare is structured, and which prescribing route you are using. GLP Trackr does not sell, supply, or source Mounjaro or Wegovy — and we do not quote prices, because they differ significantly across countries and prescribing routes. For information specific to your situation, speak to your prescriber or a registered pharmacy in your country. You can also explore our overview of weight loss injection pricing considerations and guidance on lower-cost routes to weight loss injections for general context.
For a broader introduction to how these medicines work and what the journey typically involves, visit our weight loss injections guide.
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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How GLP Trackr Helps You Get the Most from Every Pen
When you are already prescribed a weekly injection, staying consistent and keeping clear records matters — both for your results and for any conversations with your prescriber. GLP Trackr's injection-site tracking and rotation feature is built exactly for this: log each injection, record the site you used, and let the app suggest your next rotation automatically. That way, you are never guessing where you last injected.
Alongside site tracking, the app's dose logging feature means every injection — the date, time, and dose strength — is stored in one place. Paired with gentle dose reminders, it makes forgetting a weekly shot much less likely, which matters when consistency directly affects how well the medicine works for you over time.
If you experience side effects or notice changes in how you feel at different points in your cycle, the side-effect and wellbeing check-in features let you log those patterns and bring a clear summary to your next prescriber appointment.
Always follow the guidance of your prescriber or doctor regarding your dose, injection technique, and any health concerns — GLP Trackr supports your journey, but it is not a substitute for clinical advice. If you have concerns about side effects or how the medicine is affecting you, contact your healthcare professional promptly.
Ready to keep your weekly injection routine on track? Download GLP Trackr on the App Store or Google Play and start a free 7-day trial — your injection history, site rotation, and dose log all in one place.
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.
Mounjaro and Wegovy are prescription-only medicines. They are prescribed by qualified healthcare professionals — doctors or other authorised prescribers — who assess whether the medicine is appropriate based on your individual health profile and medical history.
These medicines are obtained through a prescriber and a registered pharmacy in your country. GLP Trackr does not sell, supply, or source medication. Speak to your doctor or prescriber for guidance on the right route for your circumstances.
Yes, rotating injection sites each week is generally recommended for both Mounjaro and Wegovy. Common sites include the abdomen, thigh, and upper arm. Your prescriber or the patient information leaflet with your pen will confirm the recommended approach for your specific medicine.
Both Mounjaro and Wegovy can be prescribed to men and women. Suitability is determined by a prescriber based on individual health factors, not gender. If you have questions about whether either medicine is appropriate for you, speak with your doctor or prescriber.
GLP Trackr lets you log each injection, record and rotate sites, set dose reminders, and track side effects over time. You can share a summary with your prescriber at appointments. It is a tracking tool, not a medical service, and does not replace clinical guidance.