Research guide

Tirzepatide

Mounjaro · Zepbound · LY3298176

A medicine used in Mounjaro for type 2 diabetes and Zepbound for specific weight-related conditions.

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Product statusApproved
Development snapshotApproved

How it works, simply

It activates GIP and GLP-1 receptors, helping regulate blood sugar and appetite.

What the evidence tells us

Trials of the approved products do not establish the quality of a separately purchased research vial.

Watch with PEP 7

A short introduction; the sources and limitations remain important.

Open video guide

Video guides are coming soon.

Risks and open questions

  • Gastrointestinal effects and dehydration are important concerns; hypoglycemia risk increases with certain diabetes medicines.
  • The label has a thyroid C-cell tumor boxed warning and specific contraindications; the human tumor risk is uncertain.

Research and education only. PepGuide does not recommend medicines, doses or protocols.

Technical details and study context

Mechanism: Selectively activates GIP and GLP-1 receptors.

Sponsor or developer: Eli Lilly and Company

Studied or labeled topics: Type 2 diabetes, Chronic weight management

Commercial blend names and research vials do not inherit a medicine’s approval or manufacturing controls.

Sources and review dates

Product labels and further research

These directories help locate records. They are not individual studies supporting every statement.

Readability updated October 10, 2026. Evidence review: October 10, 2026 (linked label: purpose and selected risks). A wording update is not a new clinical review.