Rob, I have gone from 2 to 4 to 6 and each dosage has gotten proportionately larger. be 6 mg patch that I'm wearing now is 2 in.². The 2 mg patch is 1 1/4 in.². I don't have a left over 4 milligram patch hanging around. I only cut the coaches when I was going from one coast to another and wanted to use up the leftovers since they are so expensive. So when I was moving from 4 to 6 I used a 4 and 1/2 of another four, then did the same thing the next day, thereby using 3 4 mg patches to last two days. I would not recommend getting a six or eight and cutting them up.