Thanks Dave,  I currently am taking 360 mg daily.  90 mg 4 times a day, i am pretty sure I need to take it while I sleep at night because of my breathing.  To avoid having to get up during the night I want to try the XR tablet. My insurance does cover it but, it is a top tier drug and will cost me about $2 a pill.  Which isn’t too bad.  I have pretty decent retiree’s insurance through my former employer.  I know a couple of folks that go to Mexico for their insulin.