Pharmacology help

So I plan on majoring in marine and environmental sciences but I also want to be a pharmacologist. If I majored in this, what would my steps have to be in order to become a pharmacologist?

Do you mean do research? Then you would pursue a master’s degree or PHD most likely.

http://www.pharmacy.pitt.edu/programs/grad/grad_index.php

Here is some information about graduate programs at University of Pittsburgh pharmacy school.