In my nursing program pharmacoloy was a suggested prerequisite because it would be helpful in clinicals which started in the first semester. I think it would be helpful for you to take as Pharmacology can be a big stumblig block for a lot of students. My school had a text book called Pharmacoloy Made Incredibly Easy. Youy could proably find it on the net. It's a simple approach to drugs and their applications side effects etc based on neumonics and other memory cues.
Hope this helps