Use-rates for 9 tranquilizing and 3 stimulant drugs or drug-combinations were recorded in a state hospital population over a 4 year period, ending December 31, 1958. Data were plotted graphically, and userates were observed in descending order for chlorpromazine, promazine, reserpine, proclorpromazine, meprobamate, triflupromazine, mepazine, mepazine plus chlorpromazine, reserpine plus chlorpromazine, benzedrine, methylphenidate, and iproniazid.By the end of the observation period, 61% of the total hospital population, (21% of the male, and 40% of the female populations) were receiving one or more of the drugs. Of the total, male, and female populations on drugs, 34%, 11%, and 23% respectively were receiving chlorpromazine.Abstract Teaser