Provided are a peptide comprising the amino acid sequence of DEAQETAVSSHEQD, the polynucleotide encoding it, the uses of said peptide for the treatment of the symptoms associated with pain and for the inhibition of the activity of influenza virus, and a pharmaceutical composition containing said peptide.本發明涉及肽、該肽用於治療與疼痛有關的症狀的用途、該肽用於抑制流感病毒活性的用途和含有該肽的藥物組成物。