Medical school vs pharmacy school difficulty

I find both professions very interesting but I'm curious as to which professional school is more difficult. I'm not here to be persuaded to either route. I would assume that medical school has a much higher volume of content to memorize? I know that both schools are very difficult, but I'd think that medical school is more difficult. Thanks to anyone that has any insight to this. I know it's difficult to answer since most people haven't been a student in both schools!
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums