How Long Can You Take Semaglutide Before You Stop Losing Weight? Experts Weigh In

While weight loss medications can deliver significant results, our bodies eventually adapt to everything. And many people end up taking GLP-1 receptor agonists like Ozempic or Wegovy  for an extended period of time if not indefinitely. But how long can you take semaglutide without your weight loss stalling? We asked experts to weigh in on using the medication long-term. 

How long can you take semaglutide for optimal weight loss? 

Both Ozempic and Wegovy contain the active ingredient semaglutide, but only Wegovy is formally indicated for weight loss while Ozempic is FDA-approved to treat type 2 diabetes. 

“How long Wegovy stays effective for weight management really depends on the individual, but generally, people tend to see the most dramatic results in the first three to six months,” says Rebecca Emch, PharmD, VP of Pharmacy and Medical Operations at Eden. 

Over time, your body can adapt to the drug, meaning weight loss might slow or plateau. But that doesn’t necessarily mean the medication has stopped working, she explains. This could be because your body is adjusting to a new normal. 

“Clinical studies have shown that with continued use, semaglutide can support weight loss for well over a year, especially when combined with lifestyle changes,” says Emch. 

Research backs this up. In a study published in the journal Nature, 68 percent of participants taking semaglutide achieved 5 percent or more weight loss and 44 percent achieved 10 percent weight loss after two years. That’s compared with 21 percent and 7 percent, respectively, for those receiving a placebo. 

How to continue losing weight on semaglutide

While there isn’t a set time limit after which semaglutide automatically becomes less effective, your body’s response to the drug depends on the rest of your lifestyle, particularly diet, exercise and underlying conditions, explains Jamie Rutland, MD, BuzzRx Medical Advisor. This includes metabolism-affecting thyroid disorders which can disrupt your body’s ability to burn calories; conditions like Polycystic Ovary Syndrome (PCOS) which can make it harder for your body to use insulin properly, leading to weight gain and conditions affecting cortisol levels including Cushing’s Disease. (Learn more about the common reasons you might not lose weight on semaglutide here). 

Here’s how to ensure you reach your long-term weight loss goals while taking semaglutide for an extended period of time:

You may need to change your dose

Ozempic and medications like it have a dose-response relationship for most patients, explains Angela Baalmann, PharmD, assistant professor of clinical sciences in High Point University’s Fred Wilson School of Pharmacy. This means the higher the dose, the more weight loss will be seen for most patients if they are responsive to the medication in general. 

“Depending on how severe the patient’s obesity is, they may adapt to high doses and experience less weight loss than the average person would at a similar dose,” says Baalmann. “However, the weight loss shown in all cases (severe and nonsevere) is maintained as long as the patient keeps taking the medication—it’s a chronic medication, not to be taken short-term.” 

After the majority of weight is lost (usually within the initial months of taking semaglutide injections), progress generally slows progressively over time. Still, if you’re taking the drug for a year or more, increasing the dose as needed (with your doctor’s guidance) will likely boost your weight loss to help you reach your goal. 

You may need to be more consistent 

Taking semaglutide may trigger side effects, some of which can cause discomfort. Additionally, prescription weight loss drugs are often expensive without substantial insurance coverage. (Learn how to get Ozempic for $25 or less here.) For these reasons, you may decide to pause taking the medication and eventually resume. But know that doing this could affect your results. 

“Going on-and-off of Ozempic is not usually recommended unless medically necessary and should be a decision made by working closely with your doctor,” advises Dr. Rutland. “Weight regain, blood sugar fluctuations and gastrointestinal issues could arise. This could also disrupt your metabolic adaptation of the medication, making it harder to achieve long-term results.” 

If you stop using semaglutide for a period of time, most or all of the weight you lost could return, and weight loss might be more challenging when you resume the medication. That said, if your body generally responds to Ozempic or Wegovy, you can usually still see weight loss results to some degree, affirms Baalmaan. 

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