Mounjaro vs Rybelsus
Compare Mounjaro and Rybelsus on active ingredient, dosing schedule, FDA-approved use and pharmacy acquisition cost.
By Sam Reed · Founder and data leadVerified Aug 12, 2026
The short answer
Mounjaro contains Tirzepatide and Rybelsus contains Semaglutide. These are different molecules, so their dosing and clinical evidence differ.
Side by side
Costs are what a pharmacy pays to acquire each product, from CMS NADAC. Not a retail price, and not what you would pay.
= better value on that rowScroll sideways on small screens — the first column stays pinned
Data sources · cited with retrieval dates
- CMS NADACNational Average Drug Acquisition Cost, weekly fileretrieved Aug 12, 2026
- CMS Medicare Part DPrescriber public use file, by geography and drugretrieved Aug 12, 2026
- CMS State Drug UtilizationQuarterly Medicaid prescription and reimbursement dataretrieved Aug 12, 2026
NADAC figures are pharmacy acquisition costs, not retail prices and not what you will pay. This content is educational and is not medical advice.