I was recently accepted into chembio for year 2, but is thinking of applying bio&pharm later in the academic year. However, when looking at the admission requirements for bio&pharm, I noticed a lot of their required courses are antirequisites of the courses I am required to take for chembio year 2. Any advices?

Antirequisties are usually accepted as replacement, talk to a biochem advisor.

I know it has been done in the past (and this was when there were more rigid course requirements for chembio), but you should speak with the science co-op office.

Not sure what a biochem academic advisor will do, since you're neither in biochem nor trying to transfer into biochem