The topic of weight loss and glucagon-like peptide-1 receptor agonists (GLP-1 RAs) has recently gained increased attention in the media. There has been growing demand for these medications, but there have also been some misconceptions about the specific products and the FDA-approved indications for each. While early GLP-1 RA options were dosed once or twice daily, in recent years, once weekly injections have been approved for the treatment of diabetes to improve blood sugar control and provide cardiovascular benefit while affording the convenience of less frequent injections. It was observed through clinical trials and real-world experience that patients with diabetes experienced notable weight loss from these medications alongside the antidiabetic effects. This “side effect” results from appetite suppression and slowed movement of food through the gastrointestinal tract. Reduction of weight has been proven to decrease the risk of diabetes, hypertension and joint pain. It also encourages a more active lifestyle. As a result, manufacturers sought approval from the U.S. Food and Drug Administration (FDA) for new GLP-1 RA products to be used in weight reduction.
Ozempic® and Wegovy® both contain the same active drug, semaglutide. Ozempic® was approved in 2017 exclusively for the treatment of diabetes, and Wegovy® was approved in 2021 for use in weight reduction. Similarly, Mounjaro™ and Zepbound™ contain the same active ingredient, tirzepatide. Mounjaro™ was approved in 2022 to treat diabetes, and Zepbound™ was approved this month for use in weight loss. Although they will promote weight loss, it is not appropriate for Ozempic® or Mounjaro™ to be used exclusively for weight loss in individuals without diabetes as these dosage forms are reserved for patients who are managing their diabetes with these therapies. Inappropriate use for weight loss has led to many reported shortages of Ozempic® and Mounjaro™, affecting the medication regimens of patients with diabetes.
Before initiating therapy with a GLP-1 RA, patients should be aware of gastrointestinal side effects, such as nausea, vomiting and cramping that may occur from the use of these drugs for either indication. Patients and health care providers are advised to review medical history and weigh the risks and benefits of these medications to ensure safe and effective use.