How difficult is a MS Finance for those with a non business bachelors?

Considering applying to a few Masters of Science in Finance programs in the fall but I have basically no experience with finance/business courses from my undergrad. I majored in biomedical sciences but only needed to take a biostats class since I had the AP credits, I didn't need to take any calculus courses. For anyone who has done a MsFin degree without having a business/finance background, how difficult was the experience?