Stopping Mounjaro and weight gain in India: what the trials show after people stop semaglutide or tirzepatide, and what it means for the Indian pens

On average, yes, and on average people in both trials were still below their starting weight a year after stopping^1,3. In the STEP 1 extension, the net loss from the start was 5.6 % at week 120, down from 17.3 % at week 68¹. In SURMOUNT-4, the placebo group was 9.9 % below the start at week 88, against 25.3 % for those who continued³. In the STEP 1 extension, most heart and metabolic measures that had improved moved back towards their starting values¹.

Semaglutide leaves the body slowly. Under the US Wegovy label, semaglutide stays in the circulation for about 5 to 7 weeks after the last 2.4 mg dose, with a half-life of about 1 week⁹. Under the US Mounjaro label, tirzepatide's half-life is about 5 days¹⁰. A half-life is the time the body takes to clear half of a dose. A UK NHS leaflet says these medicines slow stomach emptying, so you may feel full sooner and for longer¹¹. In India, CDSCO records Wegovy as approved since 20 April 2022 "for chronic weight management in adults"¹².

In India, Ozempic is sold for type 2 diabetes in 0.25, 0.5 and 1 mg; the 2.4 mg weight-loss dose is Wegovy, which Emcure also sells as Poviztra^13,14. No trial read for this page sets a stop date. The approvals describe long-term use: like Wegovy in CDSCO's record, Sun Pharma's Noveltreat is indicated "for chronic weight management in adults"^12,15. Generic brands have been sold since March 2026; the semaglutide india hub lists them¹⁶. The US Zepbound label indicates tirzepatide to reduce excess weight and maintain the reduction long term¹⁷.

How long do I need to take Mounjaro?

The sources give no fixed length. PTI reported that Mounjaro was launched in India for type 2 diabetes and for weight management in adults at a BMI of 30 or more, or 27 or more with a weight-related condition¹⁸. In June 2026, CDSCO's expert committee said removing the BMI cut-off was not appropriate, because the definition of obesity differs between US and Asian populations¹⁹. In SURMOUNT-4, the people who stayed on after week 36 lost a further 5.5 % by week 88, on average³. The mounjaro india page covers the pens, strengths and prices.

The Mounjaro and Wegovy pens sold in India hold more than one dose, so a pause can fall mid-pen^20,21. The table lists them in launch order.

Pens sold in India as reported on the dates in the sources. Storage limits are from the US labels; "leaflet governs" means the sources give no figure and the Indian pack leaflet decides^9,10,20,21.

Facts checked on 29 October 2026.

What happens if you stop Wegovy for a month and then restart it?

Under the US Wegovy label, after 2 or more missed weekly doses the prescriber restarts the dose step-up at a lower dose⁹. The US Medication Guide tells patients who miss 2 or more weeks to contact their prescriber about how to restart⁹. The semaglutide dose schedule page has the missed-dose table. In India, the pack leaflet and your prescriber govern; the Indian leaflets were not online for this page, so the rule here is the US label's. A month off also means an opened Wegovy pen may have passed the US label's 56-day limit, and PharmEasy says the Indian box states the limit^9,23.

Each row keeps its source's unit.

Prices as reported on the dates shown, in launch order. MRP is the maximum retail price printed on the pack. Prices change. They are not an offer^6,24,29,30.

Facts checked on 29 October 2026.

The US Wegovy label gives the prescriber two maintenance doses, 2.4 mg (recommended) and 1.7 mg, and tells them to weigh treatment response and tolerability⁹. Which dose, if any, is the doctor's call.

A plateau is a stretch when the scale stops moving; in the trials, the average loss slowed over time. STEP 1 ran 68 weeks and ended at −14.9 % with semaglutide 2.4 mg against −2.4 % on placebo². SURMOUNT-1 (tirzepatide) ran 72 weeks and ended at −15.0 % to −20.9 % by dose³². In SURMOUNT-4, the people who stayed on had lost 20.9 % by week 36 and a further 5.5 % by week 88³. The average kept falling, but far more slowly, and a plateau on your scale may sit inside that slowing.

Why does semaglutide stop working?

The trials do not show the medicine stopping; they show an average that slows, and a spread around it. In STEP 1, 50.5 % of people on semaglutide 2.4 mg lost 15 % or more at 68 weeks². In all, 86.4 % lost at least 5 %; everyone else lost less than 5 %². Two things a doctor may check are set out in the US label. First, the dose step: the US Wegovy schedule reaches its maintenance dose in week 17⁹. The US label allows up to 7.2 mg for adults who have tolerated 2.4 mg for at least 4 weeks, when more weight reduction is clinically indicated⁹. The Indian Wegovy strengths stop at 2.4 mg¹². Second, missed doses, under the US label's 2-day rule⁹. The semaglutide dose schedule page sets out the steps with the Indian pens.

Ozempic is semaglutide, sold in India for type 2 diabetes¹³. The NHS (UK) says to talk to a doctor before stopping semaglutide or tirzepatide, and not to stop suddenly^4,5. For people with type 2 diabetes, it says stopping semaglutide could affect blood sugar⁴. Neither withdrawal trial tested a gradual step-down against a sudden stop^1,3. SURMOUNT-4 compared continuing tirzepatide with a switch to placebo; in the STEP 1 extension, all treatment stopped at week 68^1,3. So this page cannot say that tapering changes regain. A doctor decides when and how to taper.

Some situations call for a stop. For a planned pregnancy, plan the stop with your doctor: the US Wegovy label and the NHS say semaglutide at least 2 months before trying^4,9. The NHS says tirzepatide at least 4 weeks before; the US Zepbound label says to stop it when a pregnancy is recognised^5,17. Severe stomach pain that does not go away, with or without vomiting: both US Medication Guides say to stop the medicine and call the prescriber right away^9,17. If side effects bother you or do not go away, the NHS semaglutide guide says to speak to a pharmacist or doctor and keep taking the medicine unless told to stop⁴. In India, you can report a suspected side effect to PvPI, the national pharmacovigilance programme, on 1800 180 3024 on working days^33,34.

If you are thinking about stopping, or your weight has stopped moving, talk to your prescriber, or Talk to a Zelta specialist, before you change anything.

On average, regain after stopping is the usual result in the trials, and this page cannot promise otherwise^1,3. The US Zepbound label approves tirzepatide together with a reduced-calorie diet and more physical activity¹⁷. Sun Pharma's Indian wording for Noveltreat and Novo Nordisk India's for Wegovy say the same^14,15. In STEP 1, both groups had a lifestyle programme, and the extension stopped it with the medicine^1,2. A joint advisory from four US medical and nutrition societies says muscle and bone should be preserved during GLP-1 use through resistance training and an appropriate diet³⁵. It calls for nutrition and lifestyle counselling before, during and after weight loss³⁵. It says protein targets of 1.2 to 1.6 g per kg of body weight a day have been proposed during active weight reduction³⁵. An Indian consensus panel adds hydration: more than 2 litres a day of water or non-sugary drinks³⁶. Anyone with a fluid or protein limit from a doctor follows that limit.

Will I gain weight if I stop taking Ozempic? In India, Ozempic is a type 2 diabetes medicine; the weight-loss dose is Wegovy¹³. When that dose and its lifestyle programme stopped in the STEP 1 extension, two-thirds of the loss came back within a year, on average¹.

What happens if you stop semaglutide? On average, weight came back over the following year¹. The NHS (UK) says to talk to a doctor first and not to stop suddenly⁴.

How long does semaglutide stay in your system? About 5 to 7 weeks after the last 2.4 mg dose, under the US Wegovy label; tirzepatide's half-life is about 5 days under the US Mounjaro label^9,10.

Does Ozempic need to be weaned off? Ozempic is a type 2 diabetes medicine in India¹³. A doctor decides when and how to taper. The NHS (UK) says not to stop suddenly, and the withdrawal trials did not test a taper^1,3,4.

What happens if you stop Wegovy for a month and then restart it? Under the US Wegovy label, the step-up restarts at a lower dose, and the Medication Guide says to contact the prescriber⁹. The Indian pack leaflet governs here.

Do you have to be on Ozempic forever? In India, Novo Nordisk sells semaglutide's weight dose as Wegovy, not Ozempic¹³. The trials cited set no stop date. CDSCO records Wegovy for chronic weight management in adults¹².

Is a weight loss plateau the same as the medicine not working? The trial data show a spread, not a stop. In STEP 1, 86.4 % on semaglutide 2.4 mg lost at least 5 % and 50.5 % lost 15 % or more². In SURMOUNT-4, those who stayed on after week 36 still lost a further 5.5 % by week 88, on average³.