Metformin is a well-studied, generic drug, used by millions of people around the world.

Insulin is a hormone made by the pancreas that faciliates glucose uptake into the body's cells. Most insulin is taken by injection or through a pump.

SGLT-2 inhibitors are a type of oral medication that people with type 2 diabetes can use to lower blood sugar levels.

Incretins are a medication class that can help people lower blood glucose, lose weight, and improve heart or kidney risk.

DPP-4 inhibitors are a type of medication that people with type 2 diabetes can use to lower blood sugar levels.  

Glucagon is used to treat dangerously low blood sugar. Newer ready-to-use glucagon options offer more convenience for people with diabetes.