US Pharmacopeia: General Chapters contain analytical standards, assays and quality control information. Monographs contain Drug "recipes." Try General Chapter 1151, "Pharmaceutical Dosage Forms." Print editions are available at the WongAvery Library, in the Reference collection (Ref QV738 AA1 P536). Also create an account to get chapters online at USP Access Point
Micromedex: Find storage and stability information in "DrugDex." Find international information in "Martindale"