well, interview is with 2 people, usually lecturers, one was nice, the other was mean! but just be confident, they do ask weird questions like, what would u do if u didnt understand some of the work?
But i know one person who had the interview with the head of pharmacy and apparantly asked difficult academic questions like on maths and on things about medicines. hopefully u dont get him.
Just read over personal statement, and they do ask quite a lot of work experience. its lasts about 15 - 20mins.