Drugs may be classified according to their chemical structure, their pharmacology, or their therapeutic use, but none of these groupings is completely satisfactory and avoids either overlapping between, or forced attaching to, the various categories. The most debated classification is the one according to therapeutic application, since it may comprise not only substances which vary widely with
... [Show full abstract] respect to their chemical structures, but also drugs that differ fundamentally in their pharmacodynamic profiles. The volume on antihypertensive drugs is no exception to this rule and presents quite a few of the problems inherent in an arrangement compiling drugs which are used to lower high blood pressure.