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Health condition · Clinically reviewed

Wegovy patient guide

Wegovy (semaglutide 2.4 mg) is a weekly weight-management injection available on the NHS through specialist services and privately through regulated providers.

Key points

What matters most, at a glance.

The essentials in plain English - symptoms, when to seek help, who to see and what treatment looks like.

  • Average weight loss of around 15% at 68 weeks in the STEP trials, alongside diet and activity support

  • NHS access is via specialist weight-management services for people meeting NICE criteria

  • Private access requires a clinical assessment by a regulated pharmacy or clinic

  • Side effects are mainly digestive: nausea, vomiting, constipation and diarrhoea

  • Works while taken - a maintenance plan matters because weight tends to return after stopping

Understanding it

About Wegovy patient guide, and what to do next.

Wegovy is a higher-dose form of semaglutide licensed specifically for weight management. It mimics the gut hormone GLP-1, reducing appetite and helping people feel full sooner; in trials, average weight loss was around 15% of body weight over roughly 16 months. It is injected weekly, starting low and stepping up over several months to limit nausea.

NICE recommends it within specialist NHS weight-management services for people with BMI 35+ (or 30+ in some circumstances, with lower thresholds for some ethnic groups); private clinics can prescribe after proper assessment. Stopping abruptly usually leads to weight regain, so any course should include a long-term plan. Most people start with their GP, who can refer to a weight-management clinic. NHS routine referrals often take 20-45+ weeks depending on where you live, while a private consultation is typically available within about two weeks.

A quiet reminder

This guide is for information, not medical advice.

Your GP knows your history and can tell you which parts apply to you. If in doubt, see them.

Frequently asked

Common questions about Wegovy patient guide.

Quick, plain-English answers to what people ask us most.

  • What is Wegovy?

    Wegovy is a brand of semaglutide, an injectable medication originally developed for type 2 diabetes, licensed at a higher dose specifically for weight management in people who meet certain clinical criteria.

  • How does Wegovy work?

    It works by mimicking a natural gut hormone (GLP-1) that increases feelings of fullness, slows stomach emptying, and reduces appetite, helping people eat less and lose weight.

  • What are the side effects of Wegovy?

    Common side effects include nausea, vomiting, diarrhoea, constipation, and abdominal discomfort, particularly when starting or increasing the dose; these often improve over time as the body adjusts.

  • Is Wegovy safe?

    It has been studied in large clinical trials and is generally considered safe for appropriate candidates, though it isn't suitable for everyone, including those with certain thyroid cancer history or during pregnancy, and should be prescribed and monitored by a healthcare professional.

  • Does Wegovy work for everyone?

    Most people using Wegovy alongside lifestyle changes achieve meaningful weight loss, though individual results vary, and it works best as part of a broader programme including diet and physical activity changes.

  • How is Wegovy taken?

    It's given as a weekly injection, starting at a low dose and gradually increasing over several weeks to the target maintenance dose to help minimise side effects.

  • How long do you need to take Wegovy for?

    It's generally intended for longer-term use as part of ongoing weight management, and weight regain is common if it's stopped without continued lifestyle support, similar to how other chronic conditions are managed continuously.

  • Wegovy vs Ozempic - what's the difference?

    Both contain the same active ingredient (semaglutide), but Wegovy is licensed and dosed specifically for weight management at a higher maximum dose, while Ozempic is licensed for type 2 diabetes management at different dosing; they are not interchangeable without medical guidance.

  • When should I see a doctor about starting Wegovy, and how quickly can I be seen privately?

    See a doctor or weight management specialist to discuss suitability. NHS access has specific eligibility criteria and can involve waits; private weight management clinics can often arrange an assessment within about one to two weeks.