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The drugs were developed for use treating diabetes and, later, weight loss, but they have proven helpful with the heart, kidneys, and colon. On the flipside, it may slow digestion and lead to gastroparesis, or stomach blockages, and unexpected babies resulting from the slow effect of birth control pills.
Semaglutide, the key ingredient in Ozempic, is proving to be more than just a diabetes and weight loss drug. Research suggests it may also help prevent strokes, improve heart health, and slow Alzheimer’s.
Clinical studies show GLP-1 drugs, including semaglutide, promote weight loss through a number of effects. These include reduced appetite, slower emptying of the digestive tract, increased insulin production, and more.
Examine this chart that compares and contrasts the oral and injectable Wegovy formulations. The differences include how they are absorbed by the body (through the digestive tract versus subcutaneously), their dosages, and the required timing (the pill is taken daily and has specialized timing requirements, while the injected form is administered once a week). Importantly, the pill form is also approved to treat fewer conditions.
We've all heard about these new weight loss drugs. But what are they actually doing inside the human body to help people manage their weight? Health news site STAT has created a clear, concise video that explains what GLP-1 RAs are and how semaglutide works.
It's well-established that drugs which mimic the hormone GLP-1 can help people lose weight and control blood sugar levels, primarily through appetite reduction. This technical review provides an overview of how both natural and therapeutic GLP-1 interacts with the gut and brain to produce its effects.
Coverage for GLP-1s for obesity treatment is limited. It's barred under Medicare, and it's only covered under Medicaid in 13 states as of January 2026, since states can choose whether to cover weight-loss drugs under Medicaid. Coverage with private insurers also remains limited.
Scientists studying the barely-there feeding frequency of the Gila monster found its saliva had a hormone regulating blood sugar and appetite. Further research revealed this hormone resembled a human one known as GLP-1, giving rise to the modern wave of diabetes and weight-management drugs.
Around 75% of prescriptions for GLP-1 drugs are used to treat diabetes, while the remainder is used for weight loss. This overview from GoodRX includes a list and overview of currently available options along with prices for each.
In the US alone, the percentage of the population meeting the clinical standard of obesity rose from less than 20% to more than 40% over the past three decades. This rise has been matched by many countries across the globe, from industrialized to developing nations.
GLP-1 drugs popularity for weight loss and treating diabetes, led to a significant supply shortage and the rise of compound pharmacies, which produce customized drug formulations but lack formal approval from regulators. The drugs are ostensibly the same, but manufacturing methods lead to variations in concentration, filler compounds, and more.
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