Tirzepatide

Approved medicine

The FDA has approved a version of this as a medicine, so it has been through large studies in people.

Also called Mounjaro / Zepbound / LY3298176 / GIP/GLP-1 dual agonist

A copy of two gut hormones in one molecule. Approved for type 2 diabetes and weight loss, with large studies behind it.

The basics

What is it?
A medicine that copies two gut hormones at once to lower appetite and blood sugar.
What do we know?
A lot. Large studies in people show strong weight loss and better blood sugar. It is an approved medicine.
What do we still not know?
Long-term effects over many years, and how people do after stopping.

Can a doctor prescribe this?

Yes. Pharmacies are allowed to make it, so a doctor can write a prescription for it.

The FDA has approved a version of this as a medicine.

FDA approved as a finished drug, with a legal compounding pathway for the active ingredient.

Official status: On the 503A bulks list. Checked 2026-07-01.

Lab suppliers we list: 3

Doses used in research

Taken word for word from the studies and trials listed on this page. This is not a recommendation and not a dose for anyone to take.

In human trials