Compare · GLP-1 agonist
Semaglutide vs Tirzepatide
Both are glp-1 agonist compounds. Here's how they line up on the evidence — graded the same way.
| Semaglutide | Tirzepatide | |
|---|---|---|
| Evidence | Strong human | Strong human |
| Class | GLP-1 agonist | GLP-1 agonist |
| Summary | A GLP-1 drug with strong RCT evidence for weight loss, glucose control, and cutting cardiovascular events in high-risk patients. | 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 → |
Semaglutide
Semaglutide is one of the most heavily studied metabolic drugs of the past decade. Unlike most compounds we profile, the human evidence here is large, long, and consistent — so the honest job is to describe where it holds up and where it does not.
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.