Pharmacy school is harder than a normal undergrad program. To put this in perspective, my last year of undergrad I took Ochem II, biochem, micro, physics II, A&P I, all of these with labs. I also had a senior 30 page research paper to write.
I would say that semester prepared me for pharmacy school, but pharmacy school was a little more intense. At least I didn't freak out. One of my friends kept breaking out into hives all semester. She went to a community college.