Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Rybelsus (semaglutide) and Glucotrol XL (glipizide) are both oral medications used to treat Type 2 diabetes, but they belong to different medication classes. Rybelsus is a glucagon-like peptide-1 (GLP-1) receptor agonist, while Glucotrol XL is a sulfonylurea. Rybelsus is taken once daily on an empty stomach, whereas Glucotrol XL is typically taken once daily before breakfast or the largest meal. Rybelsus is only available as a brand-name medication, while Glucotrol XL is available as a lower-cost generic. Common side effects of Rybelsus include nausea, vomiting, and diarrhea, and it carries a risk of thyroid tumors. Glucotrol XL can cause dizziness and diarrhea, and it has a risk of low blood sugar, especially if taken without food. Rybelsus can interact with other medications by affecting their absorption. Both Rybelsus and Glucotrol XL have a higher risk of causing low blood sugar when combined with other diabetes medications.
Rybelsus (semaglutide)
Glipizide
Rybelsus (semaglutide)
Glipizide
Summary of Rybelsus vs. Glipizide
Summary for GLP-1 agonist
Prescription only
Rybelsus (semaglutide) is a brand-name GLP-1 agonist that helps lower blood sugar in adults with Type 2 diabetes. It's also FDA approved to help reduce the risk of heart attack, stroke, and heart-related death in people with Type 2 diabetes who are at risk for these events. The medication comes as a pill that's taken by mouth once a day, at least 30 minutes before you eat, drink, or take any other medications by mouth. It’s used along with diet and exercise, and might also help with weight loss. Common side effects include nausea, stomach pain, and diarrhea.
Summary for Sulfonylurea
Prescription only
Glipizide is a sulfonylurea medication used to treat Type 2 diabetes in adults. It lowers blood sugar levels by telling your pancreas to release more insulin. Glipizide is taken by mouth, typically once or twice daily. Some side effects of this medication include dizziness and diarrhea. Taking glipizide can also put you at risk for dangerously low blood sugar, so it's important to take this medication with meals.