Retatrutide (LY-3437943) is a next-generation investigational drug developed by Eli Lilly for the treatment of obesity and metabolic disorders. It is a novel triple agonist that activates GLP-1 (Glucagon-Like Peptide-1), GIP (Glucose-Dependent Insulinotropic Polypeptide), and Glucagon receptors simultaneously. This triple action helps optimize metabolism, control appetite, and enhance fat burning.
🔬 Mechanism of Action
Retatrutide works by mimicking GLP-1 and GIP to improve insulin secretion, regulate blood sugar, and reduce hunger, while glucagon receptor activation increases energy expenditure (fat breakdown). The combined effect results in significant and sustainable weight loss and improved overall metabolic health.
🧪 Clinical Research
In Phase-2 clinical trials, Retatrutide showed unprecedented results, with participants losing up to 24% of their body weight in 48 weeks at the highest 12 mg weekly dose. The drug has a half-life of approximately 6 days, which allows for a convenient once-weekly injection.
⚠️ Possible Side Effects
- Nausea
- Vomiting
- Diarrhea
- Constipation




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