I don't really have an exact number. But there is generally something to do every night. I think the key is to stay ahead. Don't wait till the last minute to do the stupid little assignments. Try to do it right after it's assigned. If not, you're going to end up overwhelmed. I know that's hard to do because I am not good about that myself. Honestly, in your first your it's not super difficult. There is just a lot. You're also not going to learn much that's pharmacy related either. The class that is the worst your first year by far is biochem. But that's not until the spring. Physiology will be your hardest class this semester. Don't get intimidated and try to enjoy yourself some. If you lock yourself in the library and never have any fun you will go insane. I loved my first year and have gotten so close with the people in my class. Hope that helps some.