For many diabetes patients, diet and exercise alone isn't enough to control blood sugar levels. These patients need medications. And they may need more options. A new diabetes medication is at the start of the approval process.

With all the available treatment options for type 2 diabetes, it can be hard to tell which one is right for which patient. A recent study addressed this difficulty with a comparison of two medications.

In many cases, patients with type 2 diabetes can control their disease through diet and exercise. When these lifestyle changes aren't enough, patients may need drug treatment. But which drug works best?