Key takeaways
Glyburide / metformin and insulin regular (Humulin R) are both used to manage blood sugar levels in people with Type 2 diabetes. However, they belong to different medication classes and have distinct characteristics. Glyburide / metformin is a combination of a sulfonylurea and a biguanide, taken orally, and is specifically for Type 2 diabetes. It works by increasing insulin release and reducing sugar production and absorption and used to be available as brand-name Glucovance. Humulin R, on the other hand, is a short-acting insulin injected under the skin, used for both Type 1 and Type 2 diabetes. Glyburide / metformin is typically taken once or twice daily with meals, while Humulin R is injected 2 to 3 times daily, 30 minutes before meals. Glyburide / metformin can cause side effects like low blood sugar, diarrhea, and nausea, while Humulin R may lead to low blood sugar and injection site reactions. Glyburide / metformin is prescription-only, whereas Humulin R U-100 is available over-the-counter and by prescription. Additionally, Humulin R comes in different strengths and forms, such as vials and prefilled pens, while glyburide/metformin is available in generic form only.
