The present invention relates to the use of compounds of the formula (I)in which R1, R2, R3, R4, R5 and n have the meanings indicated below, for the preparation of a pharmaceutical composition for the prevention, alleviation and/or treatment of various types of pain.本發明關於式(I)之化合物之於製備用於預防、減緩及/或治療各種類型疼痛之醫藥組成物上之用途(式中R1、R2、R3、R4、R5及n具有以下說明之定義)。