I went to the same school for undergrad and as I do for pharmacy school, and I can assure you that for me it is MUCH harder. Perhaps not in difficulty of material if you were a science major, but in time demand, volume of material, number of tests, etc etc, Pharm school is more demanding. I didn't study very much at all in undergrad (day before the test, sometimes a few hours before a test) and graduated with a 3.67. My first quarter of pharm school, I got a 3.0. (And I busted butt for it!) I have revised my study habits a bit this quarter and hope to get between a 3.3 and 3.5 this quarter (assuming finals go well). There are people who came into the program thinking they could get 4.0's, and they got a wake up call during our first round of exams.