What the Evidence Says About Wegovy's Safety
Wegovy contains semaglutide, a GLP-1 receptor agonist that acts on appetite-regulating pathways in the brain and slows gastric emptying. It is a prescription-only medicine, meaning it requires clinical assessment before it can be prescribed — a process designed specifically to screen out people for whom it would not be appropriate.
Commonly Reported Side Effects
The most frequently reported side effects are gastrointestinal. According to information published on the electronic Medicines Compendium (eMC), these include nausea, vomiting, diarrhoea, constipation, and indigestion. For many people these effects are most noticeable early in treatment or after a dose adjustment, and they often ease over time. Headache, fatigue, dizziness, and injection-site reactions are also commonly reported.
Less Common but Serious Risks
More serious — though less common — risks include pancreatitis, gallbladder problems, and heart-rate changes. There are also precautions around thyroid conditions, and Wegovy is not recommended during pregnancy or breastfeeding. These are among the reasons the medicine is prescription-only and requires ongoing clinical oversight. If you experience severe or persistent abdominal pain, jaundice, or any symptom that concerns you, contact your healthcare professional promptly — do not wait.
Who It Is Not Suitable For
Suitability is assessed individually. Wegovy is not suitable for everyone, and your prescriber will have considered your full medical history, other medicines you take, and any contraindications before prescribing. If your circumstances change — for example a new diagnosis or a new medicine — it is important to discuss this with your prescriber or doctor.
If you are curious about how Wegovy compares to other medicines in this class, the page on whether Wegovy and Ozempic are the same covers the relationship between these two semaglutide products. You may also find it useful to read about what Wegovy is and how it works for broader background, or to compare with the safety profile of Mounjaro if you have been offered a choice by your prescriber.
Wegovy carries a black triangle (▼) designation in some markets, meaning it is subject to additional monitoring. Any suspected side effects should be reported to your healthcare professional and to your national reporting scheme (such as the UK's Yellow Card scheme or the equivalent in your country).
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
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Tracking Your Wellbeing on Wegovy with GLP Trackr
One of the most practical things you can do while taking a medicine like Wegovy is keep a clear, dated record of how you feel — and that is exactly what GLP Trackr's side-effect and wellbeing tracking is built for.
The app lets you log symptoms as they happen — nausea, fatigue, dizziness, injection-site reactions — and builds a timeline you can review over days and weeks. Patterns that are hard to notice day-to-day become visible: is the nausea consistently worse on the day after your injection? Does it ease by day three? This kind of record is genuinely useful to bring to your prescriber appointments, and the app's doctor report feature lets you export a clear summary of your journey for exactly that purpose.
You can also use the daily check-in to log mood, energy, sleep, and how much your appetite has changed — giving you a fuller picture of how the medicine is affecting your daily life, not just a number on the scale.
GLP Trackr helps you record this so you can have informed conversations with your prescriber — it is not a substitute for their advice, and any concern about a symptom should be raised with your healthcare professional directly. If something feels severe, persistent, or out of the ordinary, contact your doctor promptly rather than waiting for your next scheduled appointment.
For a broader look at how GLP-1 medicines work and what to expect, the guide to how GLP-1 medicines work covers the underlying mechanisms in plain language.
If logging your symptoms and spotting patterns sounds useful, GLP Trackr is free to try for seven days — available on the App Store and Google Play. Download it and see what your own data shows.
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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.
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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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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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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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Frequently asked questions.
Wegovy is a prescription-only medicine with a reviewed safety profile, but it carries risks that vary between individuals. Your prescriber assessed your suitability before prescribing it. If you experience severe or worrying symptoms, contact your healthcare professional promptly rather than managing them alone.
Less common but serious risks associated with semaglutide include pancreatitis, gallbladder problems, and heart-rate changes. Severe or persistent abdominal pain should be assessed by a healthcare professional promptly. Your prescriber or doctor can advise based on your full medical history.
No — Wegovy is not suitable for everyone. It is contraindicated in pregnancy, in people with certain thyroid conditions, and in other specific circumstances. Suitability is determined individually by a prescriber, which is why it requires a prescription before use.
Yes. Suspected side effects should be reported to your healthcare professional and to your national pharmacovigilance scheme — such as the UK's Yellow Card scheme or its equivalent in your country. Wegovy carries additional monitoring status in some markets, making reporting especially important.
Logging symptoms daily — including when they happen, how severe they are, and how long they last — helps you spot patterns and gives your prescriber useful information. GLP Trackr's side-effect tracker lets you do this in one place and generates a report you can share at appointments.