Medications

What is Wegovy? A Complete Guide to the Weight Loss Medication

If you've been following weight loss news over the past few years, you've likely heard about Wegovy. This prescription medication has been making headlines for its impressive clinical results, with many people achieving weight loss they've struggled to reach through diet and exercise alone. But beyond the buzz, what exactly is Wegovy, and could it be right for you?

What is Wegovy?

Wegovy is a brand-name prescription medication approved by the FDA in June 2021 for chronic weight management in adults. The active ingredient in Wegovy is semaglutide, which belongs to a class of drugs called GLP-1 receptor agonists.

Originally, semaglutide was developed to treat type 2 diabetes under the brand name Ozempic. Researchers discovered that at higher doses, semaglutide produced significant weight loss, leading to the development and approval of Wegovy specifically for weight management.

Wegovy comes as a once-weekly injection that you give yourself using a pre-filled pen. It's designed to be used alongside a reduced-calorie diet and increased physical activity, not as a replacement for lifestyle changes.

How Does Wegovy Work?

To understand how Wegovy works, it helps to know a bit about GLP-1, which stands for glucagon-like peptide-1. This is a hormone your body naturally produces in your intestines after you eat.

GLP-1 does several important things:

Wegovy mimics the action of natural GLP-1, but it lasts much longer in your body. By activating GLP-1 receptors, Wegovy helps you feel fuller sooner and stay satisfied longer after meals. This makes it easier to eat less without feeling constantly hungry or deprived.

Who is Wegovy For?

Wegovy is FDA-approved for adults who meet specific criteria:

It's also approved for children ages 12 and older who meet certain weight criteria, though most users are adults.

Wegovy isn't intended for people who simply want to lose a few pounds for cosmetic reasons. It's a medication for chronic weight management in people whose weight poses health risks.

Gender Considerations

Clinical trials for Wegovy included both men and women, and the medication is effective across genders. However, research shows some interesting differences. Women made up the majority of participants in the clinical trials and, on average, may experience slightly different side effect profiles, particularly nausea, which tends to be more common in women. Both men and women achieve significant weight loss with Wegovy, though individual results vary based on many factors including starting weight, adherence, and lifestyle changes.

What Results Can You Expect?

The clinical trial results for Wegovy were impressive. In a large study of nearly 2,000 adults with obesity, people taking Wegovy lost an average of 15% of their body weight over 68 weeks. For someone weighing 240 pounds, that would be about 36 pounds.

In comparison, people taking a placebo (inactive treatment) lost only about 2.4% of their body weight during the same period.

It's important to remember these are averages. Some people lose more, some less. Weight loss typically happens gradually, with most people losing the most weight within the first six to twelve months of treatment.

Common Side Effects

Like all medications, Wegovy can cause side effects. The most common ones are digestive and usually improve over time:

These side effects are typically most noticeable when you first start Wegovy or when your dose increases. The medication is started at a low dose and gradually increased over several months, which helps minimize side effects.

More serious but rare side effects can include pancreatitis, gallbladder problems, and kidney issues. Wegovy also carries a boxed warning about thyroid tumors, based on animal studies. Your doctor will discuss your personal risk factors before prescribing.

What to Expect When Starting Wegovy

If your doctor prescribes Wegovy, you'll start with a lower dose and gradually increase it over 16 to 20 weeks until you reach the maintenance dose of 2.4 mg once weekly.

This gradual approach helps your body adjust and reduces the likelihood of side effects. You'll inject Wegovy under your skin (subcutaneously) in your abdomen, thigh, or upper arm once a week, on the same day each week.

Your healthcare provider will monitor your progress through regular check-ins, tracking your weight loss, side effects, and overall health. They may also recommend nutritional counseling and support for incorporating physical activity.

Important Considerations

Wegovy isn't right for everyone. You shouldn't use it if you have:

If you're pregnant, planning to become pregnant, or breastfeeding, talk with your doctor. Weight loss during pregnancy isn't recommended, and we don't yet have enough data about Wegovy's safety during pregnancy or breastfeeding.

From the Ozari Care Team

One of the most important things we tell our patients starting GLP-1 therapy is to stay well-hydrated and eat protein-rich foods first at meals. This helps minimize side effects and ensures you're getting adequate nutrition even as your appetite decreases. Remember, these medications work best as part of a comprehensive approach to health that includes nutrition, movement, and sleep.

Ready to Explore Your Options?

At Ozari Health we offer compounded Semaglutide and Tirzepatide starting at $99/month prescribed by licensed physicians and shipped to your door. Learn more at ozarihealth.com.

Medically reviewed by the Ozari Clinical Care Team licensed physicians specializing in metabolic health and GLP-1 therapy. Last reviewed: April 25, 2026