Amazon.com description: Product Description: Martindale: The complete drug reference has been continuously expanded since it was first published in 1883. In this 35th edition, every entry hasbeen checked and updated where necessary. The extra information, and largertext size chosen to make the books easier to read, is contained in a new cased two-volume format. The first volume contains the preface and the drugmonographs, while the second volume holds all proprietary preparations and the index, as well as manufacturers' contact information (now including websites).