The present invention relates generally to novel complexes of palladium or a palladium salt, lipoic acid and a long chain fatty acid, where the palladium is bonded to lipoic acid via both sulfurs and carboxyl group oxygens of lipoic acid, and where the long chain fatty acid is bonded to the palladium via the carboxyl group of the long chain fatty acid. The complexes are useful as cancer chemotherapy agents.