When you're in pharmacy school, there are two federal loans available to you: the Direct Unsubsidized, which covers $33,000 per year, and the GradPlus, which covers anything over that $33,000 up to estimated "cost of attendance". Basically, the GradPlus is what you'll take out if you need extra money for living expenses due to the fact that you're not working. It has a higher interest rate than the Direct Unsubsidized loan. As far as getting an apartment, most pharmacy students will have one or more roommates to try to keep expenses down. It's always advisable to "live cheap" and take out as little loan money as you possibly can.
Another thing to note is that pharmacy school isn't like undergrad, where students can often get a large portion of their tuition and living expenses paid via grants and scholarships, or even get a "full ride" based on academics or other qualities. There aren't any "full rides" in pharmacy school, since at this point the playing field has been leveled. Any scholarships you do get are likely to cover only a small fraction of your tuition, and often these are applied for at your school.