The present invention relates to novel compositions including a mixture of cadaverine, putrescine, spermine and spermidine at a concentration ranging from 0.31 to 0.63 nmol per gram of composition, the composition also including agmatine at a concentration ranging from 120 to 17100 nmol per gram of composition, and uses thereof in the treatment, in a patient, of pathologies associated with cellular hyperproliferation.