Description_x000D_ Biochem/physiol Actions_x000D_ NAMI-A is a potent antimetastatic drug in vivo that is exhibits little cytotoxicity towards many cancer cell lines. Antimetastatic of NAMI-A is attributed to the formation of adducts with membrane and cytosolic proteins. Nevertheless NAMI-A induces potent and selective cytotoxic effects in several leukemia cell lines. NAMI-A exhibits low toxicity for host tissues.