Wegovy (Semaglutide): The Key Facts
Semaglutide, the active substance in Wegovy, mimics a naturally occurring hormone called GLP-1 (glucagon-like peptide-1). This hormone is released after eating and signals to the brain that you are full. By activating GLP-1 receptors, Wegovy helps many people experience a reduced appetite and lower levels of what is often described as "food noise" — the persistent preoccupation with food.
Wegovy also slows gastric emptying, meaning food moves through the stomach more gradually. This contributes to the prolonged sense of fullness many people report, though this effect often becomes less pronounced over time.
How it is taken
Wegovy comes as a pre-filled injection pen and is administered once a week, on the same day each week. Common injection sites include the abdomen, thigh, and upper arm. The dose is typically started low and increased gradually over several months — the schedule and any adjustments are always determined by the prescriber, not the person taking the medicine.
Dose strengths
Wegovy is available in a range of dose strengths: 0.25 mg, 0.5 mg, 1 mg, 1.7 mg, and 2.4 mg. The titration pathway — when and whether to move between these strengths — is decided by your prescriber or doctor based on your individual response and tolerability.
How Wegovy differs from Mounjaro
If you are curious about a related medicine, what Mounjaro is and how it works is covered in detail elsewhere on GLP Trackr. In brief, Mounjaro (tirzepatide) acts on both GLP-1 and GIP receptors, whereas Wegovy acts on GLP-1 receptors only. For a broader explanation of the GLP-1 mechanism shared by both medicines, see our guide to what GLP-1 receptor agonists are. Which medicine is right for any individual is a decision for their prescriber — not something to determine from a comparison article.
According to information published on the electronic Medicines Compendium, Wegovy is subject to additional monitoring as a newer medicine; any side effects should be reported to your national pharmacovigilance scheme (such as the UK's Yellow Card scheme) and discussed with your healthcare professional.
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
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Tracking Your Wegovy Journey with GLP Trackr
Understanding what Wegovy is forms the foundation of your journey — but staying consistent week after week is where a tracking companion makes a real difference. GLP Trackr's dose and injection logging lets you record each weekly shot: the date, the dose strength, and the site you used, so you always know exactly where you are in your schedule.
Because Wegovy is taken just once a week, a missed or forgotten dose is easy to overlook. GLP Trackr's dose reminders send a gentle alert on your chosen injection day, and if something unexpected happens, you can log the missed dose so you have an accurate record to discuss with your prescriber at your next appointment. Dose decisions — including what to do after a missed injection — always belong with your prescriber or doctor, never with an app.
Many people also find it valuable to log how they feel in the days following each injection. GLP Trackr's side-effect tracker lets you note symptoms like nausea, fatigue, or changes in appetite and spot patterns over time — useful context to bring to conversations with your healthcare professional. For a deeper look at the safety profile of related medicines, the page on whether Mounjaro is considered safe covers common questions in this area, and our comprehensive guide to how GLP-1 medicines work provides broader context for your journey.
If any symptoms feel severe, persistent, or worrying at any point, contact your healthcare professional promptly — GLP Trackr is a tracking tool, not a substitute for clinical guidance, and your prescriber knows your full history.
Ready to bring your weekly injections, dose history, and how-you-feel data into one place? GLP Trackr is free to download on the App Store and Google Play, with a 7-day free trial waiting for you.
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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.
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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.
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.
Wegovy is a prescription-only, once-weekly injectable medicine containing semaglutide. It is a GLP-1 receptor agonist prescribed for weight management in adults, used alongside diet and physical activity under the supervision of a prescriber or doctor.
Wegovy mimics the GLP-1 hormone, which signals fullness to the brain after eating. It reduces appetite, lowers food cravings, and slows gastric emptying — meaning food moves through the stomach more gradually. Many people report reduced hunger and less preoccupation with food.
Wegovy is available in 0.25 mg, 0.5 mg, 1 mg, 1.7 mg, and 2.4 mg pre-filled pens. The dose is started low and increased gradually. All decisions about titration — when and whether to increase — are made by your prescriber, not by you independently.
No. Wegovy contains semaglutide and acts on GLP-1 receptors only. Mounjaro contains tirzepatide and acts on both GLP-1 and GIP receptors. Both are prescription-only injectable medicines for weight management, but they are different medicines. Which is appropriate for you is a decision for your prescriber.
GLP Trackr can help you log weekly doses, track injection sites, set dose reminders, and record side effects over time. It is a companion tracking tool — it does not give medical advice or replace your prescriber's guidance.