Byetta is for type 2 diabetes. It helps your pancreas produce insulin more effectively. Byetta is not insulin and should not be taken instead of insulin. A pre-measured dose comes in a pen that you use to inject the medication.
One thing that always makes me wince is a news story about some new oral diabetes drug that the reporter says promises to free people with diabetes from “painful insulin injections.” When I was a child, immunizations were painful. They were injected into a muscle, and after getting booster shots, my arm would ache for a day or…