first off Pharmacists do alot, like you can work in a hospital side by side with doctors, you can work as a typical community pharmacist, you can own your own pharmacy, you can be a teacher, you can work for the government, you can work at sending meds to people, you can work in industry as research. It all depends on the school you want to attend and what you are interested in.
That being said you can always get a PHD in something, of course then your options are research and acedemia. there's medicinal chemistry, pharmaceutical sciences, Pharmacology, and Pharmacognosy. Or you could go PHD in chem, biochem, or organic chem and work in pharmacy. It's virtually limitless. It comes down to what do you want to do. PM me and we can talk about all the careers in pharmacy i looked up this stuff to.