The effect of medication used in the treatment of obesity is limited to the period it is taken. When it is stopped, the mechanism regulating appetite and the feeling of fullness returns to its former state, so a substantial part of the weight lost is usually regained within a year. This is not a failure but a consequence of obesity being a chronic disease. At this point there are three options: continuing treatment, strengthening lifestyle support, or evaluating surgery if the criteria are met.
About this article. No medicine is named below, no dosage is given and no product is recommended. Under Turkish regulation, prescription only medicines may not be advertised to the public. This text is for general information only; every decision about medication rests with your own doctor.
The situation most often met by people who use medication for obesity for a period and then stop is that the weight returns. This is usually received with surprise and often as a personal failure. It is in fact an expected course, and the reason for it is known.
Why Does It Come Back?
These medicines work by mimicking the action of the body's own satiety hormones. Appetite decreases, fullness arrives earlier and emptying from the stomach slows. The result is a reduction in the calories taken in.
The critical point is this: the medicine does not permanently change the underlying condition. Its effect continues while it is taken. When it is stopped, appetite and satiety signalling largely returns to its former working.
To this is added the body's natural response to weight loss. When weight is lost, resting energy expenditure falls, hunger hormones rise and satiety hormones fall. The body behaves like a system trying to regain its former weight. This response appears whichever method the weight was lost by; it is not particular to weight lost with medication any more than to weight lost by dieting.
How Much Is Regained?
The general tendency reported in studies is that a substantial part of the weight lost is regained within a year of treatment being stopped. The exact proportion varies with the individual, the duration of use, the amount of weight lost and the diet and activity maintained afterwards.
The composition of the weight regained also matters. Some muscle mass is lost while weight is being lost; regain, however, is predominantly fat tissue. So even if the number on the scale returns to the same place, body composition may differ from before. This explains why protein intake and resistance exercise are emphasised during the weight loss period.
In Whom Is It More Marked?
- In those whose diet and activity loosen at the same time as the medication is stopped.
- In those whose muscle mass has fallen markedly during the weight loss period.
- In those with a long weight history who have repeatedly lost and regained before.
- In those whose body mass index was very high to begin with.
What Reduces Regain?
Regain cannot be prevented entirely, but it can be slowed:
- Maintaining adequate protein intake and preserving muscle mass.
- Regular physical activity, particularly with resistance exercise added.
- Making a plan when treatment is stopped. The decision to stop and the regimen to follow afterwards are determined by medical assessment.
- Sleep and stress management. Both directly affect appetite hormones.
- Continuing follow up. Where follow up is abandoned along with the medication, regain is generally faster.
Is This a Failure?
No. Obesity is a chronic disease, and in chronic diseases the return of the condition when treatment is stopped is an expected outcome. Just as a rise in blood pressure after antihypertensive medication is stopped is not counted as a personal failure, the situation here is the same.
Establishing this framing matters in practice, because some patients who experience regain as a personal defeat disengage from follow up altogether, which makes the situation harder still.
Where Does Surgery Sit at This Point?
Surgery is not a step that automatically arises once medication is stopped. To be brought into evaluation, the same criteria must be met: a body mass index generally of 40 and above, or 35 and above where an accompanying condition is present, with a lower threshold possible where type 2 diabetes is present. These criteria are covered in detail in the comparison of medication and surgery.
What is meaningful about surgery in this picture is that the volume of the stomach and, in some methods, the intestinal route are permanently changed. This means the change in satiety signalling does not disappear the way it does when medication is stopped.
It should nonetheless be stated that some weight can also be regained after surgery; this is covered in the article on the first year after surgery. Surgery is not a guarantee of a permanent result but a permanent anatomical change; what determines the outcome is, again, follow up and habits.
In Summary
Weight returning after medication is stopped is an expected course and its reason is known. What should be done is to treat it not as a defeat but as information, and to review with a doctor which step is appropriate at the point you are now at.
The Surgeon's Role at This Point
Over the course of his career Op. Dr. Ersan Semerci has performed more than 3000 sleeve gastrectomy and bariatric surgery cases. In recent years a proportion of the patients coming for surgical assessment are people who have previously used medication and have met with weight returning after stopping it.
The surgeon's task in this picture is not to judge the earlier treatment. It is to explain that regain is an expected course and to assess whether the person meets the criteria. Decisions about medication belong to the treating physician and to endocrinology.
Op. Dr. Ersan Semerci has practised in Mersin since 2010 and currently works at VM Medicalpark Mersin Hospital.
Op. Dr. Ersan Semerci has practised in Mersin since 2010 and currently works at VM Medicalpark Mersin Hospital. Consultations and operations in Weight Regain After Medication are carried out at this hospital. Patients travelling from Mersin and neighbouring provinces can book via WhatsApp.
Book on WhatsAppI stopped the medication and the weight came back. Did I do something wrong?
No. The effect of these medicines is limited to the period they are taken; when stopped, appetite and satiety signalling returns to its former working. The body's natural response to weight loss adds to this. Regain is an expected course, not a personal failure.
How much of the weight I lost will come back?
The general tendency reported in studies is that a substantial part of the weight lost is regained within a year of treatment being stopped. The exact proportion varies with the individual, the duration of use and the diet and activity maintained afterwards.
Can I prevent regain completely?
Preventing it entirely is not a realistic goal, but slowing it is possible. Preserving protein intake, regular activity with resistance exercise added, sleep routine and, most importantly, continuing follow up are the factors that reduce regain.
Can I have surgery straight after stopping medication?
Surgery is not a step that arises automatically because medication has been stopped. To be brought into evaluation, the criteria for body mass index and accompanying conditions must be met. That assessment is made with examination and tests.
Can weight come back after surgery too?
Some weight can be regained in the long term in a proportion of patients. Surgery is not a guarantee of a permanent result but a permanent anatomical change. What determines the outcome is portion discipline, physical activity and not neglecting follow up.
Why does muscle loss matter?
Some muscle mass is lost while weight is being lost, whereas regain is predominantly fat tissue. So even if the number on the scale returns to its former value, body composition may differ. This is why adequate protein intake and resistance exercise are emphasised.
Which conditions general surgery covers, which operations are most common in the region and which objective criteria apply when choosing a surgeon.
Answers to the most common questions about appointments, the hospital, treatment scope and surgical experience are in the FAQ section on the home page.
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For Obesity and related symptoms you can book an appointment at VM Medicalpark Mersin Hospital. Mezitli / Mersin, Turkey, weekdays 09:00-17:00.
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