American drug index

reference source that identifies and describes drugs

drug facts and comparisons

prescription/otc drugs by their therapeutic categories

Martindale's complete desk reference

evaluated resource book on drugs & drug preparations

Orange book

therapeutic equivalents by the FDA

Physicians desk reference

manufactures and prescribers information

Red book

drug pricing, RX pricing, Claim adjunctions, reimbursement
information & AWP policies

(USP) The United States Pharmacopeia

information over the standards of strength, purity, and quality of drugs.

(USP-NF) United States Pharmacopoia - National Formulary

a complication of both USP and national formulary includes standards
for botanicals, excipients and other products