Posted on September 30, 2026 by Sally-Anne Turner
Are you thinking about coming off Mounjaro?
This is always an interesting phase in a weight loss journey. You may have hit your goal weight. Or maybe you’ve been taking it for a while, and the side effects are too much to manage.
When you choose to stop taking a GLP-1, there is a bit more to it than simply reducing the injections. Stopping abruptly can dramatically affect your health. Rather than stopping altogether, you need to be weaned off and, if necessary, placed onto another drug safely.
At the Bodyline Clinic, we take your health seriously at every stage of your weight loss journey. Our clinical team is happy to work with those who have more complicated medical histories and to offer support to those who may be aiming to switch from one GLP-1 medication to another.
Here, we will walk you through the whys and how’s of stopping Mounjaro safely and look at what we can offer to help ease the potential transition from one weight loss medication to another. Remember, weight gain after stopping a GLP-1 is not inevitable.
There are many reasons why you may want to stop taking your Mounjaro injections.
Medical Reasons: You may be experiencing very severe side effects, such as nausea, vomiting, issues with your stomach or even fatigue that impact your quality of life. For example, Mounjaro constipation or other gastrointestinal symptoms may become difficult to manage. You may have had a medical emergency due to this treatment, such as diagnosis of medullary thyroid carcinoma, which would require specialist insight and intervention. Or, you may have developed acute pancreatitis, which would mean you need to stop taking Mounjaro, as per the guidance in the Medicines and Healthcare products Regulatory Agency (MHRA) product information.
Achieved Weight Loss Goals: You may have been lucky enough to have hit all of the weight loss goals that you had when you started taking this medical weight loss. Congratulations! However, at this stage, you may be worried that stopping this medication may prompt weight gain.
Weaning onto Oral Meds: Since July 2026, the Wegovy pill has been available in the UK. Since earlier in September, private weight loss clinics have also been able to offer Foundayo, another oral medication. With this switch in weight loss medication administering, more people want to switch from injections to oral options. If you are comparing Mounjaro vs Wegovy, this is something our clinical team can discuss with you as part of your ongoing treatment plan.
Lack of Weight Loss: Unfortunately, as many as 1.8% of people taking Mounjaro will not respond to the treatment, according to an analysis of the SURMOUNT-1 trial. If your Mounjaro weight loss is less than 5% of your initial body weight after six months of treatment, it may be time for a clinical review and to discuss whether a Mounjaro equivalent could be more appropriate. Of course, you shouldn’t undertake this on your own.
So, what would happen if you stopped taking Mounjaro injections quickly?
This is interesting and is one of the most noted effects of stopping this treatment. As the tirzepatide drops off (usually taking 5 days to leave the system) someone may feel hungrier or note that smaller meals no longer satisfy them. They may start to think about food again, with food noise creeping back in. However, the MHRA does not list this as a withdrawal symptom.
The data collected from the SURMOUNT-4 trials found that people who switched from tirzepatide to a placebo regained around 14% of their body weight over the following 52 weeks. So, it is safe to assume that weight loss may slow, and weight will start to creep back on.
A person who is taking Mounjaro to help with type 2 diabetes may lose some of the glucose-lowering benefits it provides. Their management plan for diabetes will likely need to be reviewed, especially if they are taking other medications.
If you have type 2 diabetes, keep an eye out for symptoms of hyperglycaemia.
These include—
If you notice persistent blood glucose readings above 15 mmol/L with symptoms or ketones present when weaning off Mounjaro, seek same-day clinical advice from your GP, urgent care centre, or NHS 111. If you develop symptoms of diabetic ketoacidosis (nausea, vomiting, abdominal pain, fruity-smelling breath), this is a medical emergency. Please be sure to call 999 or go to A&E immediately.
At Bodyline Clinic, we do not offer Mounjaro or any GLP-1 treatments for diabetes management.
We have written about Mounjaro side effects. As a GLP-1, this medication can cause stomach issues such as diarrhoea, vomiting, nausea, indigestion and constipation. If you are researching Wegovy vs Mounjaro side effects, you may notice that the two treatments share several gastrointestinal side effects, although your individual experience can differ. However, when you stop the medication, those side effects will start to reduce.
If you note any worsening of side effects when on Mounjaro, or when weaning off any GLP-1, please report these to the MHRA Yellow Card scheme at or through the Yellow Card app.
Many people who have stopped taking GLP-1s have reported an increase in depressive or anxious symptoms. Others may feel relieved to not take injections anymore.
However, if you are noting a worsening of mental health issues after finishing Mounjaro (or even when on Mounjaro), our team can help you. You may need additional support or a review of your treatment plan, and in some cases, we may decide to move you to a more suitable GLP-1 medication.
Of course, if you have been taking Mounjaro, you’re probably worried about weight regain when you stop.
As noted by SURMOUNT-4, if someone stops taking Mounjaro, they have a high risk of putting weight back on. Other research papers have found something similar.
A follow-up study to SURMOUNT-4, known as SURMOUNT-CN, was a 26-week follow-up from 2025 that looked at 108 people who had taken tirzepatide for 52 weeks. The average body weight increased by 9.1% after stopping the 10mg dose. When users were taking the 15mg dose, it increased by 12.3%. However, by the end of the follow-up, the groups were still 8.7% and 10.6% below their starting weight.
The next piece of data comes from a small retrospective cohort reported as an American Diabetes Association conference abstract. Among 68 patients who had used Mounjaro for a median of 14 months before stopping, weight loss was 13%. By month 3, they had regained 11%, and by month 6, 20%. By month 9, they had regained a median of 45%. A follow-up at five months noted that 72% of participants had regained more than 10% of their previous weight loss.
It’s easy to feel discouraged. However, these studies don’t explore the maintenance plans that may have been in place to keep weight off.
So, how do you maintain weight loss after you finish taking Mounjaro?
The good news is that, as we said at the beginning, weight gain after stopping this medication isn’t inevitable. What many patients may need to help them keep the weight off is an active strategy put together by the clinical team that is personalised to them.
In some cases, this could include reviewing whether a Mounjaro maintenance dose is appropriate rather than stopping treatment completely. Our team at the Bodyline Clinic can offer this to you but we do have a baseline plan that we advise you to look through, which includes diet guidelines.
It is true that many people who take this medication are advised to simply stop taking it. However, by working with our team to reduce Mounjaro slowly allows your body more time to adjust. This helps to minimise rebound hunger.
Your adjustment period may differ, but a typical taper might reduce the dosage by 2.5mg over 4–8 weeks. In some cases, we may decide to keep you on a low dose of Mounjaro long-term. This is up to the decision of our clinical team.
You need to prioritise high-protein meals (30– 40 g per meal) to help you feel full and to help preserve your muscle mass.
You should also aim to include high-fibre foods, such as vegetables, fruits and grains, which can help to slow digestion. Of course, you should also seek to incorporate healthy fats to, again, assist you in feeling full. Aim for avocados, nuts and olive oil, as well as oily fish.
When you work with our team, whether undertaking GLP-1 medications as a starting point, or when you are aiming to taper off Mounjaro, we will cater your exercise plan to you. This will help you to be more successful in maintaining it.
However, we advise that you engage in at least 150 minutes of moderate exercise per week. This combines aerobic and strength training, which will help you preserve muscle mass and keep your metabolism up.
Our team at the Bodyline Clinic is proud to offer extensive support strategies to our patients. We have extensive insight into helping those with mental health issues to manage GLP-treatments.
However, we can also advise more simplified options for patients who may not have diagnosed mental health conditions. Use mindfulness, journaling, or strategies like yoga to help manage emotional-eating symptoms.
As always, we will tailor your plans to your needs. No tick boxes with our team.
At the Bodyline Clinic, we know keeping weight off after weight loss medications is not easy.
This is why we offer more than a quick consultation and prescription sign-off. Our dedicated clinical team can oversee medicated weight-loss plans for individuals often excluded by online pharmacies. In short, if you have a complex medical history, which may include any of the conditions above, you will likely find that we can offer you a more personalised support plan than other weight-loss medication prescribers.
We are equipped to help:
We are also able to help people wean off medications like Mounjaro with ease, helping them to keep the weight off long-term.
When you choose to lose weight with medications with our team at the Bodyline Clinic, you are getting access to over 18 years of experience. Our clinical team has helped over 100,000 people across the UK. Even if you have been refused access to GLP-1 medications at online pharmacies or GP’s, our team may be able to help you hit your weight loss goals with success.
So, if you want to get off Mounjaro and get onto another GLP-1, or if you want to access GLP-1 medications with pre-existing health issues, contact our team today for a consultation.
Your blood sugar will increase; you may notice that your food noise returns and you may gain weight back slowly. However, with a maintenance plan in place, you can manage these symptoms better.
Yes, Mounjaro can be used long-term for weight management. However, you will need to ensure that your dose is regularly reviewed for your continued benefit and safety.
Mounjaro may appear not to work because of natural weight-loss plateaus and dose adjustments. Lifestyle factors, underlying medical issues and lack of exercise can make it seem as though this medication isn’t working. However, if you haven’t lost 5% of your starting weight by month 6, it may be time for a medical review.