Weight Loss
What Happens When You Stop Wegovy?
In one sentence: When you stop Wegovy, its effect on appetite wears off, so hunger tends to return and some of the weight you lost is usually regained, which is why it is used as a long-term treatment and why a plan to protect your progress matters.
At a glance
Appetite returns: Wegovy manages hunger only while you take it, so stopping usually brings appetite back.
Weight regain is common: in the STEP 1 trial extension, people regained about two-thirds of the weight they had lost within a year of stopping.
It is a long-term treatment: obesity is a long-term condition, and Wegovy is licensed for weight loss and weight maintenance.
No dangerous withdrawal: stopping does not cause a withdrawal reaction, but it is best planned with your prescriber.
Lifestyle protects your progress: strong diet, activity and other habits give you the best chance of keeping weight off.
Common reasons to stop: side effects, cost, reaching a goal, the NHS two-year limit, or supply issues.
Whether you are planning to stop Wegovy or just want to understand what happens if you do, it helps to know the evidence rather than guess. This guide explains what tends to happen to your appetite and weight, why it happens, whether Wegovy is meant to be long term, how to come off it sensibly, and how to protect your results. It complements our guide to how Wegovy works.
"The honest message is that Wegovy treats appetite while you take it, rather than resetting it permanently. That is not a failure of the medicine, it is how it works. If you are thinking about stopping, plan it with us rather than stopping on a whim, and put your energy into the habits that will hold your progress."
Key takeaways
What happens when you stop Wegovy?
Appetite tends to return and some of the weight you lost is usually regained over the following months.
Will you regain all the weight?
Not necessarily, but trial evidence shows most people regain a large share of it without a maintenance plan.
Is it safe to just stop?
There is no dangerous withdrawal reaction, but it is best to plan how you stop with your prescriber and strengthen your lifestyle first.
Do you have to take Wegovy forever?
It is a long-term treatment. Some people continue for maintenance, and a prescriber will advise on the right plan for you.
What happens when you stop taking Wegovy?
When you stop Wegovy, the appetite control it provides fades, so hunger and food cravings usually return, and weight tends to come back over the following months. This is well documented in the trials. In the STEP 1 trial extension, average weight loss was 17.3% at week 68 on semaglutide, but one year after stopping the treatment and lifestyle support, the net loss from the start was only 5.6%.1
Do you regain weight after stopping Wegovy?
Usually, yes, at least some. The STEP 1 trial extension found that participants "regained a mean of 11.6 percentage points" of body weight, which the authors describe as about two-thirds of their prior weight loss, in the year after stopping.1 These are averages, so individual results vary. The flip side is that staying on treatment tends to maintain the loss: in the STEP 4 trial, people who continued semaglutide lost a further 7.9% between weeks 20 and 68, while those switched to a placebo regained weight, changing by a positive 6.9%.2
Trial finding | What it showed |
STEP 1 extension, at end of treatment (week 68) | Average weight loss of 17.3% on semaglutide 2.4 mg |
STEP 1 extension, one year after stopping (week 120) | Net loss of 5.6%, meaning about two-thirds of the lost weight was regained |
STEP 4, continuing versus stopping (weeks 20 to 68) | Continued treatment: a further 7.9% loss. Switched to placebo: 6.9% regain. |
Why does stopping Wegovy lead to weight regain?
Wegovy works by mimicking the appetite hormone GLP-1, so it reduces hunger only for as long as it is in your system. When you stop, that signal fades, appetite rises, and it becomes easier to eat more again. Obesity is a long-term condition driven by biology as well as behaviour, so removing the treatment often allows the underlying drivers to reassert themselves. It is the same principle as blood pressure or cholesterol medicines, where stopping tends to let the problem return.
Is Wegovy a long-term treatment?
Yes. Wegovy is licensed for weight management "including weight loss and weight maintenance", which reflects that it is designed for ongoing use rather than a short course.3 On the NHS, however, treatment through specialist weight management services is capped: NICE recommends it "for a maximum of 2 years", after which it is stopped.4 Privately, treatment can continue for as long as your prescriber judges it appropriate and it is reviewed.
How do you come off Wegovy safely?
There is no dangerous withdrawal reaction from stopping Wegovy, so you will not become unwell simply by stopping. The main effect is the return of appetite. That said, it is best not to stop on impulse. Speak to your prescriber first, so you can plan the timing, decide whether to reduce gradually, and put extra support in place for the change. If you are stopping because of side effects, do not just abandon treatment: read Wegovy side effects and speak to your prescriber, as adjusting the dose may be an option instead.
How to keep weight off after stopping Wegovy
The habits you build while on treatment are what protect your progress afterwards. There are no guarantees, but the following give you the best chance:
Keep to a balanced, reduced-calorie way of eating that you can maintain long term.
Stay physically active, including some strength or resistance work to protect muscle.
Prioritise protein and fibre to help you feel full, and keep portion sizes in check.
Protect your sleep and manage stress, both of which affect appetite.
Weigh yourself regularly so you can act early if weight starts to creep up.
Keep in touch with your prescriber, who can advise if you would benefit from restarting or from other support.
Common reasons people stop Wegovy, and what to do
People stop Wegovy for many reasons, and each has a sensible next step:
Side effects: ask about adjusting the dose before stopping altogether. See Wegovy side effects.
Cost: weigh up the ongoing cost against the likelihood of regain. See Wegovy cost in the UK.
Reached your goal: discuss a maintenance plan rather than stopping abruptly.
NHS two-year limit: plan ahead for the transition, as NHS treatment is time-limited. See Wegovy on the NHS.
Supply issues: speak to your pharmacist about options rather than stopping without a plan.
"If you reach your goal, the instinct is often to stop straight away. It is usually wiser to talk through a maintenance plan first, because the evidence shows how easily the weight can return. Sometimes that means staying on treatment, sometimes stepping down carefully, always with the lifestyle side firmly in place."
Frequently asked questions
Will you put weight back on after stopping Wegovy?
Most people regain some weight after stopping, because appetite returns once the medicine wears off. In the STEP 1 trial extension, participants regained about two-thirds of the weight they had lost within a year of stopping. Strong lifestyle habits reduce how much comes back.
Is it dangerous to stop Wegovy suddenly?
No. Stopping Wegovy does not cause a dangerous withdrawal reaction. The main effect is that appetite returns. Even so, it is best to plan how and when you stop with your prescriber, rather than stopping on impulse, so you can protect your progress.
Do you have to take Wegovy forever?
Not necessarily, but it is a long-term treatment rather than a short course, and it is licensed for weight maintenance as well as weight loss. Some people continue for maintenance, while others stop with a plan. Your prescriber will advise on the right approach for you.
Should you taper Wegovy or stop all at once?
There is no medical withdrawal reaction that requires a taper, but some prescribers prefer to reduce the dose gradually while you strengthen your lifestyle. The best approach is individual, so discuss it with your prescriber rather than deciding alone.
How do you keep the weight off after Wegovy?
Maintain a balanced, reduced-calorie diet, stay active with some strength work, prioritise protein, fibre and sleep, and monitor your weight so you can act early. Keeping in touch with your prescriber helps, as they can advise on maintenance or restarting if needed.
Can you restart Wegovy after stopping?
Often yes, if it remains suitable for you, but this is a decision for your prescriber. If you restart after a break, you may need to build the dose up again from a lower step. Speak to your prescriber or pharmacist before restarting.
Related Wegovy guides
Sources and references
Key studies and trials
Wilding JPH, et al. 2022. STEP 1 trial extension. Diabetes, Obesity and Metabolism. Mean weight loss of 17.3% at week 68 fell to a net 5.6% at week 120, one year after withdrawal, with participants regaining a mean of 11.6 percentage points, about two-thirds of their prior weight loss.
Rubino D, et al. 2021. STEP 4 trial. JAMA. From weeks 20 to 68, those continuing semaglutide lost a further 7.9% of body weight, while those switched to placebo changed by positive 6.9%.
Guidance
Wegovy FlexTouch Summary of Product Characteristics (SmPC), emc. Licensed for weight management including weight loss and weight maintenance.
NICE TA875. Semaglutide for managing overweight and obesity. NHS treatment through a specialist service is used for a maximum of 2 years.
Medical disclaimer: This article is for general information and does not replace advice from a qualified healthcare professional. Wegovy is a prescription-only medicine. Do not start or stop treatment without advice from your prescriber. Always read the patient information leaflet and speak to your clinician or pharmacist about your individual circumstances.
Our commitment to accuracy: This page was written using peer-reviewed trial evidence and current UK sources, including the STEP trials, the electronic medicines compendium (emc) and NICE, and is reviewed by our Superintendent Pharmacist. We review our weight-management content regularly and update it as guidance changes.
About the author
Blog author
Dayna Sheppard
Dayna is a pharmacy manager with over 15 years of pharmacy experience. She is focused on delivering a safe and excellent pharmacy service for patients.
Medically reviewed by
Medical reviewer
Taslima Hussain
Taslima is a pharmacist who is passionate about patient care. She has experience working in community pharmacy as a locum.
