Dipeptide-79 D-Phenylalanyl Argininyl D-Tryptophanyl Tetrapeptide-139 Amide PEG-5 Carboxoyl N6 sh-Oligopeptide-189 SP Amide is the synthetic peptide consisting of Dipeptide-79, D-phenylalanine, Arginine, D-tryptophan, and Tetrapeptide-139, in which the C-terminus is an amide, linked by 5 units of ethylene oxide carboxoyl to sh-Oligopeptide-189 SP, in which the C-terminus is an amide, through the gamma nitrogen of the lysine of sh-Oligopeptide-189 SP.