Disclosed is the use of gold (III) complexes of porphyrins, Schiff-bases, bis(pyridyl)carboxamides and bis(pyridyl)sulfonamides as anti-tumor and anti-HIV agents.Linvention concerne lutilisation de complexes dor (III) constitués de porphyrines, de bases de Schiff, de bis(pyridyl)carboxamides et de bis(pyridyl)sulfonamides en tant quagents anti-tumoraux et anti-VIH.