Compare · GLP-1 agonist
Orforglipron vs Tirzepatide
Both are glp-1 agonist compounds. Here's how they line up on the evidence — graded the same way.
| Orforglipron | Tirzepatide | |
|---|---|---|
| Evidence | Strong human | Strong human |
| Class | GLP-1 agonist | GLP-1 agonist |
| Summary | An oral, non-peptide (small-molecule) GLP-1 receptor agonist, FDA-approved in April 2026 as Foundayo for chronic weight management. It is a once-daily pill with no food or timing restrictions — not a peptide, and not an injectable. | A dual GIP/GLP-1 receptor agonist with strong RCT evidence for type 2 diabetes, weight loss, and sleep apnea; GI side effects are common. |
| Full profile → | Full profile → |
Orforglipron
Orforglipron (brand name Foundayo) is a GLP-1 receptor agonist — the same drug class as semaglutide and tirzepatide — but with one defining difference: it is a small molecule, not a peptide, and it is taken as a once-daily pill rather than an injection. In April 2026 the FDA approved it for chronic…
Tirzepatide
Tirzepatide is a once-weekly injectable peptide sold as Mounjaro (for type 2 diabetes) and Zepbound (for weight management and sleep apnea). Unlike most compounds we cover here, it has been tested in large, well-run human trials, and the results are unusually consistent. This is not medical advice.