You should have all of the following down (most of the items you already knew if you have extensive work experience)
1. Top 300 drugs, brand - generic (including all the common brands of all of the combo drugs such as Lotrel, Advicor, Simcor etc) indications, common side effects. Pay close attention to the drugs that have different brand for the same generic, why are they different? or the drug that have multiple indication at different dosage strength... Example: Finasteride vs Propecia, Sarafem vs Prozac, Duac vs Benzamycin vs Benzaclin, Intuniv vs Tenex, Maxzide vs Dyazide etc....
2. Auxillary label for those top drugs, fridge or not, drowsiness, with or without food, external use only etc
3. Don't overlook Eye and ear drops brand generic, indication, substitution !!! know the sig for these OS OD OU AS AD AU...
4. Immunization, again brand and generic, age cut off for different brand, which brand for what age etc... very important!!!
5. IV to PO, D5W vs NS, IV stability, Light Sensitivity
6. HIV drugs, with food/without food, brand generic, pregnancy HIV drugs, sulfa allergy HIV drugs, general SE of each class. Same with Chemo.
7. Laws
8. Clinical