Wegovy: A Complete Companion Guide for People Already Prescribed

Wegovy (pronounced wee-GOH-vee) is the brand name for semaglutide supplied as a pre-filled pen for once-weekly subcutaneous injection. It is manufactured by Novo Nordisk and sits in the broader family of GLP-1 medicines used for weight management. Because it is a prescription-only medicine, every decision about starting, continuing, or adjusting it rests with your prescriber.

The chemical and how it works

Semaglutide is a GLP-1 receptor agonist — it mimics a natural gut hormone involved in appetite regulation. Many people describe feeling fuller sooner, staying full longer, and noticing a reduction in 'food noise'. Gastric emptying also tends to slow, especially in the early weeks, which is part of why nausea is commonly reported early on and often eases over time. For broader context on how this class works, see our overview of GLP-1 medicines.

The Wegovy dose ladder

Wegovy is typically titrated upward in stages so the body has time to adjust. The dose strengths commonly referenced are 0.25 mg, 0.5 mg, 1 mg, 1.7 mg and 2.4 mg, with 7.2 mg referenced in newer research as part of ongoing development. People often see these described as 'the 0.5 step', 'the 1.0 step', 'the 1.7 step' and so on. The pace and exact path through these milligrams is decided by your prescriber based on how you tolerate each stage — never something to adjust on your own. You can read more about the typical pattern in our piece on moving through the dose steps.

How Wegovy is administered

Wegovy is given once a week as a subcutaneous injection, most commonly into the abdomen, thigh, or upper arm, with sites rotated each week. Always follow the instructions in the patient information leaflet (PIL) that came with your pen, or the electronic Medicines Compendium (eMC) entry for Wegovy, for storage, handling, and step-by-step technique — these are the authoritative sources rather than tutorials on TikTok or general forums. If you are unsure about technique, your prescriber or pharmacist can walk you through it.

Commonly reported effects

The most commonly reported side effects are gastrointestinal — nausea, vomiting, diarrhoea, constipation, indigestion, reflux, bloating and increased flatulence (the 'Wegovy farts' people sometimes joke about in online communities). Headache, fatigue, dizziness and injection-site reactions are also commonly reported. Some people report sensations described as allodynia (heightened skin sensitivity) or short-lived feelings sometimes called 'withdrawals' between doses; these are anecdotal patterns worth logging and discussing with your prescriber rather than self-managing. For factual side-effect information, the NHS page on semaglutide (Wegovy) is a useful neutral reference.

Travel, storage and practical questions

People often ask about airport security, travel, and storage — for example, whether pens need refrigeration, how long they can stay at room temperature, and how to carry them on a plane. The honest answer is: check the leaflet that came with your specific pen and follow it exactly, because the figures are product-specific and updated by the manufacturer. As a general principle, Wegovy pens are typically stored refrigerated until first use, kept away from heat and direct sunlight, and carried with you (not in checked luggage) when flying. A short letter from your prescriber can also help at airport security.

Research, benefits and how it compares

Beyond weight management, ongoing research has explored cardiovascular outcomes in certain populations taking semaglutide. The picture is nuanced and continues to evolve, and any application to your personal situation is a conversation for your prescriber. Some people also want to compare Wegovy with other options — for example Wegovy and Saxenda, or with tirzepatide-based options like Mounjaro. These comparisons are informational only; which medicine is right for any individual is a clinical decision. You can also read user perspectives in our real-world reviews section, which captures the kind of honest, conditional experiences shared in forums.

GLP Trackr is built specifically for people already prescribed medicines like Wegovy, and the single biggest thing it changes is consistency — knowing exactly where you are in your weekly schedule, your dose ladder, and your progress without having to hold it all in your head.

Dose logging and reminders, built for the weekly rhythm

Every shot you take can be logged in seconds — the date, the time, the milligram strength (whether you are on 0.25, 0.5, 1.0, 1.7, 2.4 or a different step set by your prescriber), and the injection site. The app then suggests your next site automatically so rotation looks after itself, and a gentle weekly reminder means you are far less likely to forget a dose or mix up which week you are on. If you do miss one, you can log it and bring that history to your prescriber rather than guessing.

Side-effect and symptom tracking

Because nausea, fatigue, bloating, reflux and the other commonly reported effects often shift with each step up, having a clear record matters. You can log how you feel each day, spot patterns (for example, the first three days after each shot, or after a specific dose increase), and generate a clean doctor report to take to appointments. This is for observation and conversation — not self-management. Always follow the guidance of your prescriber or doctor, and if anything feels severe, persistent, or worrying, contact a healthcare professional promptly. Suspected side effects can be reported through your national reporting scheme (such as the UK's Yellow Card scheme).

Food, weight and the whole picture

GLP-1 appetite changes make food complicated — eating less, but needing the right things (especially protein). The app's food logging uses AI photo scanning, barcode scanning and search to make this effortless, alongside GLP-1-friendly meal plans, weight charts, measurements, daily check-ins for mood, energy, food-noise and sleep, and insights that connect the dots between them. Together with the broader hub on tirzepatide-based options and our content on healthy, sustainable weight change, it gives you one place for the journey rather than five scattered apps.

Special-care reminders

Some topics deserve an explicit pause — pregnancy, breastfeeding or trying to conceive, thyroid concerns, pancreatitis or gallbladder history, mental-health changes, or interactions with diabetes medicines. These are all conversations for your prescriber before any change. If you are pregnant or thinking about it, please see our note on Wegovy and pregnancy and speak with your healthcare professional. GLP Trackr helps you record what you are experiencing; it isn't a substitute for clinical advice.

Get started

If you'd like one calm, organised place for your Wegovy weeks — every dose, every site, every symptom, every step on the scale — GLP Trackr is free to try for seven days on the App Store and Google Play. Bring your journey together and see what your own data tells you.