Use of squaramide compounds or its pharmaceutically acceptable salt for manufacturing medicament for treating and/or preventing parasitic diseases, e.g. leishmaniasis, trypanosomiasis, or Chagas disease. Application Number: ES2525079-A1. Patent Assignee: UIB/UGR. Inventors: Rotger Pons M D C, Costa Torres A, Sanchez Moreno M, Marin Sanchez C.