Hi there,
Although I didn't do an interview at Birmingham, I have done other universities pharmacy interviews.
I would first start and look at the type of interview - is there anything you need to prepare for in advance, what will be covered during the interview like chemistry, maths element. Go through this so you are fully prepared and it won't be as surprising when it comes up. Go through the prospectus of Birmingham and how they teach pharmacy, assessments and placement structures as this can help you if they ask "why Birmingham".
I would recommend looking at the Standards of Pharmacy Professionals as a basis for all answers as it's really easy to incorporate it into answer and how you have demonstrated these standards. Have you had a look on the The StudentRoom forums about interview prep? It may be generic but it can get you started initially. There are some common questions that you can prepare for like "why this university", "why pharmacy", "what do you like about this course" etc.
I hope this is helpful and if you have any other questions feel free to ask!
University of Bath