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PeptideHormone

Brenipatide vs Tirzepatide

A long-acting dual GIP/GLP-1 agonist aimed at the brain's reward circuitry rather than the scale. A dual GIP and GLP-1 receptor agonist — the first of the co-agonists. Side by side: type, evidence tier, receptor, molecular weight, and half-life — the same fields as each monograph, rearranged so the engineering difference is visible.

Brenipatide
LY3537031
Tirzepatide
Also known as—Mounjaro, Zepbound
TypeAnalogAnalog
EvidenceInvestigationalEstablished
FamilyIncretins & metabolicIncretins & metabolic
ClassGIP/GLP-1 dual agonist (acylated peptide)Dual GIP/GLP-1 receptor agonist (39 aa, acylated)
Receptor / targetGIP + GLP-1 receptorsGIP receptor + GLP-1 receptor
Molecular weight≈4,900 Da~4,813.5 Da
Half-lifeengineered for an extended dosing interval (not yet disclosed)
~5 days (~120 h)
Model dosing
Based onGlucagon-like peptide-1Glucose-dependent insulinotropic polypeptide

Half-life bars are on a logarithmic scale across the molecules shown. Reference values for the native or representative form — educational only, not medical or dosing advice.

Common questions

What is the difference between Brenipatide and Tirzepatide?
Brenipatide is an engineered analog based on Glucagon-like peptide-1; Tirzepatide is an engineered analog based on Glucose-dependent insulinotropic polypeptide. Brenipatide signals at GIP + GLP-1 receptors; Tirzepatide signals at GIP receptor + GLP-1 receptor.
How do the half-lives of LY3537031 and Tirzepatide compare?
The reported circulating half-life of Brenipatide is engineered for an extended dosing interval (not yet disclosed); Tirzepatide is ~5 days (~120 h). These are reference values for the native or representative form — educational only, not dosing advice.

Prefer the other order? Tirzepatide vs Brenipatide. Or open the interactive comparison tool to add more molecules.