Comparison

Exenatide vs. Mazdutide

Two peptides side-by-side — identity, evidence base, legal status and known adverse events.

Identity

Mechanism of action

Exenatide

Exenatide is a 39-amino-acid peptide with about 53% sequence homology to human GLP-1. A glycine substitution at position 2 prevents dipeptidyl-peptidase-IV cleavage and extends the half-life from native GLP-1 (minutes) to about 2.4 hours. GLP-1 receptor activation glucose-dependently stimulates insulin secretion, inhibits glucagon and delays gastric emptying.

Mazdutide

Mazdutide is a dual agonist at the GLP-1 and glucagon receptors and is structurally derived from the gut hormone oxyntomodulin. The GLP-1 component mediates glucose-dependent insulin secretion, inhibition of glucagon secretion at elevated blood glucose, and modulation of appetite and gastric emptying. The glucagon component can influence energy expenditure and hepatic lipid and glucose metabolism. A fatty-acid side chain enables albumin binding and the weekly administration interval.

Evidence base

Highest evidence

Human RCT

Studies

of which in humans

Effects recorded

Open conflicts

Documented adverse events

Legal status

Country	Exenatide	Mazdutide
CN	—	Prescription
Germany	Prescription	Research only
United States	Prescription	Research only

Full entries

Frequently asked questions

What is the difference between Exenatide and Mazdutide?: Exenatide is classified as "Metabolic", while Mazdutide is classified as "Metabolic". Exenatide: Synthetic version of exendin-4, originally isolated from the saliva of the Gila monster (Heloderma suspectum). First GLP-1 receptor agonist, FDA-approved 2005 as Byetta. Weekly depot form Bydureon approved 2012. Mazdutide: Synthetic oxyntomodulin analogue that simultaneously activates the GLP-1 and glucagon receptors (dual agonist). Developed by Innovent Biologics and Eli Lilly. In China the NMPA approved mazdutide on 27 June 2025 for chronic weight management; a further filing for type 2 diabetes is under review in China. Outside China the substance remains in clinical development. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
Which peptide is better supported by science, Exenatide or Mazdutide?: The highest available evidence level is "Human RCT" for Exenatide and "Human RCT" for Mazdutide. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.
What is the legal status of Exenatide and Mazdutide in Germany and the United States?: Germany: Exenatide — Prescription, Mazdutide — Research only. United States: Exenatide — Prescription, Mazdutide — Research only. These are factual summaries with source and review date on the individual pages.

Country

Exenatide

Mazdutide

—

Prescription

Germany

Prescription

Research only

United States

Prescription

Research only

Frequently asked questions

What is the difference between Exenatide and Mazdutide?

Exenatide is classified as "Metabolic", while Mazdutide is classified as "Metabolic". Exenatide: Synthetic version of exendin-4, originally isolated from the saliva of the Gila monster (Heloderma suspectum). First GLP-1 receptor agonist, FDA-approved 2005 as Byetta. Weekly depot form Bydureon approved 2012. Mazdutide: Synthetic oxyntomodulin analogue that simultaneously activates the GLP-1 and glucagon receptors (dual agonist). Developed by Innovent Biologics and Eli Lilly. In China the NMPA approved mazdutide on 27 June 2025 for chronic weight management; a further filing for type 2 diabetes is under review in China. Outside China the substance remains in clinical development. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.

Which peptide is better supported by science, Exenatide or Mazdutide?

The highest available evidence level is "Human RCT" for Exenatide and "Human RCT" for Mazdutide. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.

What is the legal status of Exenatide and Mazdutide in Germany and the United States?

Germany: Exenatide — Prescription, Mazdutide — Research only. United States: Exenatide — Prescription, Mazdutide — Research only. These are factual summaries with source and review date on the individual pages.