The present invention relates to peptides having psychopharmacological properties, of the formula: <IMG> I wherein A represents the aminoacid residue Arg, Lys or Leu and B represents H-L-?ys-OH or H-L-Asx-L-?ys-L-Pro-L-A-OH, as well as the functional derivatives thereof.
PEPTIDES HAVING INFLUENCE ON MEMORY PROCESSES, PROCESSES FOR PRODUCING THEM AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM