SEMAGLUTIDE is a synthetic peptide and a glucagon-like peptide-1 (GLP-1) receptor agonist, which is an FDA-approved medication used for the treatment of type 2 diabetes and chronic weight management. It mimics the naturally occurring GLP-1 hormone in the body to regulate appetite, blood sugar levels, and insulin secretion.
MECHANISM OF ACTION: Semaglutide works by activating GLP-1 receptors in the body. This action slows gastric emptying (how quickly food leaves the stomach), signals the brain's appetite control center to reduce hunger and cravings, and increases insulin production when blood sugar is high. This helps individuals feel full longer, reduce calorie intake, and improve glycemic control.
APPROVED BRAND NAMES: Semaglutide is the active ingredient in three FDA-approved medications, available by prescription only:
Ozempic®: An injectable (once weekly) for managing type 2 diabetes.
Wegovy®: An injectable (once weekly) and oral tablet (daily) for chronic weight management in adults with obesity or those who are overweight with a weight-related medical condition.
Rybelsus®: An oral tablet (daily) for managing type 2 diabetes.
USAGE AND BENEFITS: When used in conjunction with diet and exercise, semaglutide can lead to significant weight loss and a reduced risk of major cardiovascular events such as heart attack, stroke, or death in patients at high risk.
ADMINISTRATION: It is primarily administered via subcutaneous injection, but an oral formulation is also available.
Glucagon-like peptide-1 (GLP-1), a hormone that plays a key role in regulating blood sugar and appetite. It can also refer to GLP-1 receptor agonists (GLP-1RAs), a class of drugs that mimic the effects of GLP-1, used to treat type 2 diabetes and, more recently, for weight managementTo understand how GLP-1 agonists work, it helps to understand how the naturally occurring GLP-1 hormone works.
GLP-1 is a hormone that your small intestine makes. It has several roles, including:
GLP-1 agonist medications work by mimicking this hormone. In medication terms, an agonist is a manufactured substance that attaches to a cell receptor and causes the same action as the naturally occurring substance. In other words, GLP-1 medications bind to GLP receptors to trigger the effects (or roles) of the GLP-1 hormone. The higher the dose of the GLP-1 agonist, the more extreme the effects.
If you have Type 2 diabetes, the medications help manage your blood sugar by triggering your pancreas to release more insulin. The slowed digestion also helps decrease blood sugar spikes.
The satiety effect of GLP1-agonists reduces your food intake, appetite and hunger. These combined effects often result in weight loss.
Other than lowering blood sugar levels and reducing weight, studies show that GLP-1 agonists may have other potential benefits, like:
The most common side effects of GLP-1 agonists include:
These side effects are more likely to happen when you start the medication or if you’re taking an increased dose.
Other side effects can include:
You may also have temporary mild itchiness and/or redness on your skin at the site of the injections.
Severe — but rare — side effects can include:
The standard dosing regimen for semaglutide involves a gradual titration to help the body adjust and minimize potential side effects such as nausea or gastrointestinal discomfort. Here’s the typical progression:
