The present invention relates to the sigma-receptor ligand groups of formula (I) in the analgesic activity of enhancing opioid and opiate and the purposes in reduction dependence as caused by them simultaneously.本發明涉及式(I)的σ受體配體組在增強阿片樣物質和鴉片製劑的鎮痛作用和同時降低由它們引起的依賴性中的用途。