If You Want to Maintain Your Weight After Stopping Wegovy or Mounjaro Weight-Loss Injections

Hello, this is Bliss Clinic.

For anyone dieting, Wegovy and Mounjaro—injectables that can help you lose weight with just one shot—are hot topics.

Without much effort, your appetite decreases and you lose weight, which is why many people are enthusiastic about weight-loss injections. However, you may be even more worried about what happens after stopping Wegovy or Mounjaro because of the rebound weight gain that can occur when you stop the medication.

We will explain the parts that people considering weight-loss injections such as Wegovy and Mounjaro are actually likely to wonder about, so please pay close attention for a moment!

How Wegovy and Mounjaro Work

To understand how to respond after stopping weight-loss injections such as Wegovy or Mounjaro, it is important first to understand the key ingredients and how they work, and to know how these medications act in our bodies.

Both medications mimic a hormone called "incretin," which is secreted in the intestines, but there are subtle differences.

✨ Wegovy (ingredient: semaglutide)

This is a single agonist that acts only on the GLP-1 (glucagon-like peptide-1) receptor in the body. It stimulates the brain’s satiety center, slows gastric emptying, and increases fullness, making you feel less hungry and helping you stay satisfied with smaller portions. It is involved in appetite suppression and blood sugar control.

✨ Mounjaro (ingredient: tirzepatide)

This is a dual agonist that acts on both GLP-1 and the GIP (glucose-dependent insulinotropic polypeptide) receptors. It promotes insulin secretion after meals, helps reduce blood sugar spikes, slows gastric emptying, and sends a sense of fullness to the appetite center so that it lasts longer.

In other words, you can understand it as a medication that affects not just appetite suppression but also the body’s energy-use process.

Side Effects of Stopping Weight-Loss Injections

Stopping Wegovy or Mounjaro itself does not cause new side effects, but the moment you stop taking the medication, the artificially altered hormonal signals are discontinued, and your body may show the following reactions as it tries to regain balance on its own without the injection:

👉 Appetite increases sharply again 👉 Fasting blood sugar becomes unstable 👉 Fatigue and lack of energy increase 👉 Digestive function changes 👉 Weight quickly increases again (rebound weight gain) 👉 Mood swings become more severe

Why You Need to Consult Medical Staff When Stopping Wegovy or Mounjaro

Weight-loss injections are medications for which dose design is extremely important. If the dose is too low, the weight-loss response is minimal, and if it is too high, the risk of gastrointestinal side effects increases, so the attending physician should adjust the dose increase according to the weight-loss goal and your current physical condition.

Wegovy and Mounjaro reduce appetite and keep you feeling full for longer, which reduces the amount of food you normally eat and leads to weight loss. Therefore, if you stop using a weight-loss injection, your food intake may increase, and as the energy entering your body becomes greater than the energy you burn, you may gain weight. So it is important to discuss dietary control methods with medical staff before stopping the medication.

Weight-loss injections are structured like blood pressure medication in that once you stop them, the effect disappears as well, so long-term maintenance is often necessary. Depending on your individual condition, long-term treatment may be needed, as discussed with medical staff.

Key Weight Maintenance Strategies

What you prepare before stopping the weight-loss injection is important.

✔️ Manage appetite increase When you stop Wegovy or Mounjaro, your body’s appetite control may return to its original state.

✔️ Set a weight maintenance strategy It is better to build habits through appropriate meal portions and an exercise plan.

✔️ Stop all at once Wegovy and Mounjaro do not use a tapering method.

Tapering Method A tapering method is only needed for medications that have withdrawal symptoms.

Weight-loss injections are medications whose dose is increased step by step, and semaglutide is slowly broken down in the body, so even if you stop the injection, the medication’s effect naturally decreases over several weeks, creating a natural tapering effect. For that reason, this method is not applied.

Preparing to Stop Weight-Loss Injections

Even if you suddenly stop Wegovy or Mounjaro weight-loss injections, withdrawal symptoms are rare. However, appetite can increase sharply and lead to weight gain, so if you are considering stopping, it is necessary to check and follow the items below. If you do not have the psychological skills to manage this, relapse is inevitable.

ㄱ. Check for emotional eating Weight-loss injections reduce eating driven by reward-seeking around food, impulsive eating, stress, loneliness, and similar factors. But these may appear again after stopping the medication, so if you plan to stop, it helps to record whether you are eating because you are hungry or because of emotions, and to use a diet journal to check whether emotional eating patterns return.

ㄴ. Check changes after one month Even if you stop Wegovy or Mounjaro weight-loss injections, the point at which the medication effect disappears completely is around 4 weeks. So for one month after stopping, record changes in weight, food intake, and how you feel so that you can identify and respond to any abnormal reactions early.

If you have reached your target weight through Wegovy or Mounjaro weight-loss injections and decided to stop, it should be done through consultation with a specialist in order to prevent weight gain. However, because many experts view obesity as a chronic disease, it is also good to remember that a long-term treatment plan may be necessary.

At Bliss Clinic, in addition to consultations, we assess patients’ concerns through questionnaires and blood tests, and through InBody testing we measure each person’s body age, basal metabolic rate, body fat percentage, and obesity level to help with weight loss.

If you have successfully lost weight through Mounjaro, Wegovy, or the DT7 program, we recommend that you do not decide on your own, but instead make a plan together with medical staff so that the result can be maintained stably.