My doctor put me on 1000 mg twice a day. I was diagnosed as fully diabetic, so I take my blood sugars. If they are higher than 150 I will take two 500mg. If they are lower will only take one. They are the extended release. My A1C was at 7.3.
500MG 2x a day
500 MG and 3 times a day
I take 1x 750mg extended release tablet twice a day xx