ANTITUMOR COMPOSITION

摘要

In an antitumor agent having a high antitumor effect, it is frequently observed that the activity is lowered with a decrease in the toxicity and, therefore, a satisfactory antitumor effect cannot be always established. Thus, it has been required to develop an antitumor agent which has a high antitumor effect with little side effect or toxicity as the antitumor agent. It is intended to provide an antitumor agent in the form of fine particles containing platinum chloride compounds or platinic acid chloride compounds together with hydroxyapatite. The platinum chloride compounds and the platinic acid chloride compounds include platinum tetrachloride, platinic acid tetrachloride, platinic acid hexachloride, disodium platinum tetrachloride, disodium platinum hexachloride, dipotassium platinum tetrachloride and dipotassium platinum hexachloride. The maximum particle diameter of hydroxyapatite is 1 µm or less.