Skip to content
Peptigraph home
Shop Peptides50% off*

Is tirzepatide a peptide?

Yes. The Mounjaro label describes the body breaking tirzepatide down by cleaving its peptide backbone, along with fatty-diacid breakdown, so it is a peptide carrying a fatty-acid chain.

GLP-1 / GIP dual agonistUpdated

Short answer

Yes. The Mounjaro label describes the body breaking tirzepatide down by cleaving its peptide backbone, along with fatty-diacid breakdown, so it is a peptide carrying a fatty-acid chain.[1]

The Zepbound label uses the same metabolism wording, which answers the brand question: Zepbound and Mounjaro are the same molecule.[2]

What kind of peptide drug

The label classes it as an agonist at two gut-hormone receptors, GIP and GLP-1, both of which are peptide hormones.[2]

A review groups tirzepatide among peptide-based incretin therapies.[3]

More on Tirzepatide

How it worksTarget, mechanism and how long it acts, from the label or studies.Tirzepatide overview

Sources

  1. 1MOUNJARO prescribing information (FDA label)FDA label, DailyMed · current labeldailymed.nlm.nih.govAccessed 2 Oct 2026
  2. 2ZEPBOUND prescribing information (FDA label)FDA label, DailyMed · current labeldailymed.nlm.nih.govAccessed 2 Oct 2026
  3. 3Multifunctional incretin peptides in therapies for type 2 diabetes, obesity and associated co-morbidities.Peptides · 2025PMID 40081498Accessed 2 Oct 2026

Found an error? Report a correction.