You should also be aware of the possible side effects:
"Important Safety Information for BYETTA® (exenatide) injection
Serious side effects can happen in people who take BYETTA, including inflammation of the pancreas (pancreatitis) which may be severe and lead to death. Before taking BYETTA, tell your healthcare provider if you have had pancreatitis, stones in your gallbladder (gallstones), a history of alcoholism, or high blood triglyceride levels. Call your healthcare provider right away if you have pain in your stomach area (abdomen) that is severe, and will not go away. The pain may happen with or without vomiting and may be felt going from your abdomen through to your back.
Your risk for getting low blood sugar is higher if you take BYETTA with another medicine that can cause low blood sugar, such as a sulfonylurea or insulin. The dose of your sulfonylurea or insulin medicine may need to be lowered while you use BYETTA.
BYETTA should not be used in people who have severe kidney problems and should be used with caution in people who have had a kidney transplant. BYETTA may cause new or worse problems with kidney function, including kidney failure.
Before you use BYETTA, tell your healthcare provider if you have severe problems with your stomach, such as delayed emptying of your stomach (gastroparesis) or problems with digesting food.
Do not use BYETTA if you have had an allergic reaction to exenatide or any of the other ingredients in BYETTA. Severe allergic reactions can happen with BYETTA. Stop taking BYETTA and get medical help right away.
Tell your healthcare provider if you are pregnant or plan to become pregnant. It is not known if BYETTA will harm your unborn baby. Talk to your healthcare provider first if you are breastfeeding or plan to breastfeed.
The most common side effects with BYETTA include nausea, vomiting, diarrhea, feeling jittery, dizziness, headache, acid stomach, constipation, and weakness. Nausea most commonly happens when first starting BYETTA, but may become less over time.
These are not all the side effects with BYETTA. Talk to your healthcare provider about any side effect that bothers you or that does not go away."