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Semaglutide

Weight Loss
Peptide #01

FDA approved for Type 2 diabetes (Ozempic) and chronic weight management (Wegovy). GLP-1 receptor agonist that reduces appetite, slows gastric emptying, and supports sustained weight loss when combined with lifestyle intervention.

Overview

FDA approved for Type 2 diabetes (Ozempic) and chronic weight management (Wegovy).

Clinical Effects

Semaglutide is a modified version of the GLP-1 hormone, which is an incretin hormone our gut releases in response to eating. Natural GLP-1 has a very short lifespan in the body (minutes), but semaglutide’s structure has been altered (including an amino acid substitution and a fatty acid chain attachment) to resist rapid degradation and allow once-weekly dosing. The peptide has 39 amino acids and is 93% similar to human GLP-1. By binding to the GLP-1 receptor, semaglutide essentially amplifies the body’s own insulin release processes. It was first approved as an injectable medication for type 2 diabetes (brand name Ozempic®) and later at a higher dose for obesity (brand name Wegovy®). Semaglutide is typically formulated as a stabilized, water-soluble peptide for subcutaneous injection. Because it’s a well-characterized compound in medicine, its identity and purity are well-established, making it a reliable reference in research settings. In summary, semaglutide is what you get when you take a natural hormone and optimize it for therapeutic use – it retains the functions of GLP-1 but with far greater potency and duration.

Quick Information

Safety Information

Contraindications

The most common side effects are gastrointestinal. Because semaglutide slows digestion and reduces appetite, nausea is frequently reported, especially when first starting or increasing the dose. Some people also experience vomiting, diarrhea, constipation, or heartburn. Usually these effects are mild-to-moderate and improve over time as the body adjusts. Other possible side effects include headache, fatigue, or slight increases in heart rate. A rare but serious side effect (observed in this drug class) is a type of thyroid tumor in rodents, but it has not been seen in humans – nonetheless, semaglutide isn’t given to people with a history of certain thyroid cancers as a precaution. It’s important to note that any medication that causes rapid weight loss can also carry risk of gallstones. In practice, patients are monitored and side effects are managed by dose adjustments.

Side Effects

The most common side effects are gastrointestinal. Because semaglutide slows digestion and reduces appetite, nausea is frequently reported, especially when first starting or increasing the dose. Some people also experience vomiting, diarrhea, constipation, or heartburn. Usually these effects are mild-to-moderate and improve over time as the body adjusts. Other possible side effects include headache, fatigue, or slight increases in heart rate. A rare but serious side effect (observed in this drug class) is a type of thyroid tumor in rodents, but it has not been seen in humans – nonetheless, semaglutide isn’t given to people with a history of certain thyroid cancers as a precaution. It’s important to note that any medication that causes rapid weight loss can also carry risk of gallstones. In practice, patients are monitored and side effects are managed by dose adjustments.