EXENATIDE treats type 2 diabetes. It works by increasing insulin levels in your body, which decreases your blood sugar (glucose). It also reduces the amount of sugar released into your blood and slows down your digestion. Changes to diet and exercise are often combined with this medication. With the Patient Assistance Program from AstraZeneca, you can enroll for 12 months at a time, and your medication will be shipped to you or your doctor, depending on the medication, every 90 days at no charge if you are approved.