Rybelsus is a glucagon-like peptide-1 (GLP-1) receptor agonist medicine. To lower A1C, it enhances insulin synthesis (which lowers blood glucose) while inhibiting glucagon production (which raises blood glucose). One of the most significant benefits of Rybelsus medication is that it is the only licensed GLP-1 prescription that can be taken as a pill rather than an injection, making it more convenient.