Exenatide for Fat Loss
First-in-class GLP-1 mimetic derived from Gila monster venom; sold as Byetta/Bydureon.
Why Exenatide for fat loss?
Exenatide is a 39-aa synthetic version of exendin-4 from Heloderma suspectum (Gila monster) saliva. It was the first GLP-1 receptor agonist FDA-approved (Byetta, 2005, Amylin/Lilly), with a microsphere weekly formulation Bydureon following in 2012. Largely displaced by liraglutide, semaglutide, and tirzepatide.
Fat Loss context: Reducing body fat percentage through appetite regulation, lipolysis, or metabolic upregulation. Exenatide fits this goal because its category (Metabolic) and benefit profile align with the underlying mechanism.
Benefits relevant to fat loss
- Modest weight loss
Reference dosing by bodyweight
Anchored to the most-cited research dose (5 mcg @ 75 kg). Reference only.
| Bodyweight band | Reference dose range |
|---|---|
| <60 kg / <132 lb | 3–4 mcg |
| 60–75 kg / 132–165 lb | 4–5 mcg |
| 75–90 kg / 165–198 lb | 5–6 mcg |
| 90–105 kg / 198–231 lb | 6–7 mcg |
| >105 kg / >231 lb | 6–9 mcg |
Side effects to weigh against fat loss benefit
- Nausea
- Pancreatitis (rare)
- Injection-site nodules (Bydureon)
Educational use only
This calculator is provided for research and educational purposes. Outputs are derived from the values you enter. Always verify your math and consult a licensed physician before acting on any result.