The present invention relates to substituted amide derivatives having dual pharmacological activity towards both the sigma (σ) receptor, and the μ-opioid receptor, to processes of preparation of such compounds, to pharmaceutical compositions comprising them, and to their use in therapy, in particular for the treatment of pain.本發明係有關具有針對西格馬(σ)受體和μ-類鴉片受體二者的雙重藥理學活性的經取代的醯胺衍生物,並有關製備此類化合物之方法,有關包含其等的藥物組成物,並且有關其等在治療上之用途,特定言之用於治療疼痛。