... diazepamwere first marketed under the tradename Valium by its manufacturer, Hoff-mann–La Roche, Inc. This name is a reg-istered trademark. After patent protec-tion for the manufacture of diazepam-containing ... preparations (as of 1991, more than 50). Some of these eas-ily reveal the active ingredient, because the company name is simply added to the generic name, e.g., Diazepam- (com-pany’s name). Other designations ... some other commerciallysuccessful drugs are sold under morethan 20 different brand labels. The num-ber of proprietary names, therefore,greatly exceeds the number of availabledrugs.For the...