So basically an interview is just to see who you are as a person, I'm not sure how much students the school is interviewing it doesnt say on their pharmcas applicaion.
also i noticed thank you interview letters, are you supposed to do that after an interview or when you recieve the letter. Also what are the general questions they ask durning an interview
Yes the interview is to see how you interact with others, how well spoken you are, and many other factors. The information about interview acceptance rates can be found via a google search, may take some time but it is there.
I sent an email thanking the school for the interview afterwards, however it is not required and most likely will not change an admission decision.
General questions can be found online, there are tons of lists.
Examples
Why Pharmacy? Why not MD/PA/RN/PHD?
What are your Strengths/Weaknesses?
If X happens to Y what do you do? (problem solving basically, there's usually no wrong answer)
If its an open interview (meaning they can view your application) be prepared to answer as to why you got a FF/F/W/C in a course. Also be willing to bring up examples of your shadowing/work/volunteer/etc if asked.
REVIEW YOUR Letters of Recommendation and Personal Statement! They could ask questions!
Review the schools webpage and learn about the school, try to incorporate something into interview day.
Keep in mind the schools know its a nervous/exciting day and will most likely be nice. Don't overdo anything.