Yeah, it's harder if you don't know what text you'll be using... Perhaps your library, or your municipal library system , has a copy of a pharmacology textbook you could look over. I would think they are all covering the same kind of material, and I have had good results using this technique with OB and Peds. There's also some "Pharmacology Made Incredibly Easy" and "Pharm for Dummies" books out there, though I cannot vouch for their effectiveness personally. So, while looking over those drug cards/drug consult materials will help you get familiar with the drug names, common side effects, etc. They aren't as good at giving you that pithy "Why" information that you'll be expected to know in pharm. My prof (my venerable, kind, wise, etc. Prof!) put it to us this way. "DON'T MEMORIZE DRUG CARDS". Now, this statement has not been binding
We certainly DO need to do a good bit of memorizing, but I think what he meant was that he wants us to understand WHY (based on their chemistry, pharmacodynamics, level of protein binding, distribution, metabolism, and excretion) these drugs have certain side effects, interactions and nursing considerations. If we know the why of it, then we don't have to rely on memorization.