“AHFS Drug Information® is a collection of drug monographs on virtually every single-drug entity available in the United States.”
“AHFS Drug Information® monographs are written principally on single-drug entities; information on various trademarked preparations and brands of a drug is contained in a single monograph. Drug combinations are described in the monographs on the principal ingredients or, rarely, appear as separate monographs (e.g., Co-trimoxazole 8:12.20) when the combinations are considered important because of therapeutic rationale and/or frequency of use. … Information on older and prototype drugs is another feature of AHFS Drug Information®.” —AHFS Drug Information® Users Guide