The invention relates to the chemical and pharmaceutical industry, in particular to a drug for treating and preventing benign prostatic hyperplasia, prostatitis, impotency, infertility and prostate cancer and to a method for the use thereof. The inventive drug is based on dextrorotary (D) or levogeratory (L) or racemic (DL) camphor in the form of a fatty-oil-dimexide emulsion (Emulsio Camphorae Axungio Oleo-Dimexidosa), an oil-aqueous emulsion (Emulsio Camphorae Oleo-Aguosa) or in the form of suppositories, the camphor quantity being of 0.1-15.0 % by volume. The above-listed drugs are rectally administrable once a day by course of therapy upto 20 days every year. The camphor preparations increase the resistance of tissue colloids, exhibit antagonistic action with respect to capillary poisons, activate the erection center of the sacral part of the parasympathetic nervous system, exhibit M- and H-cholinolytic action, produce tonic action on the ejaculation center situated in the symphatic part of the central nervous system, normalise the capillary and venule tonus, stimulate vasomotor centers of the spinal chord, enhance the synthesis of macroergic phosphates and inhibit ATPacid splitting in the hypoxia conditions and exhibit analgesic, bactericidal and fibrinolytic effect. The inventive drug and method make it possible to carry out the preventive treatment of the above-listed disease during many decades.