neuroleptanalgesia

noun

neu·​ro·​lept·​an·​al·​ge·​sia ˈn(y)u̇r-ə-ˌlep-ˌtan-ᵊl-ˈjē-zhə, -z(h)ē-ə 

variants or neuroleptoanalgesia

ˌn(y)u̇r-ə-ˈlep-tō-ˌan- 

: joint administration of a tranquilizing drug and an analgesic especially for relief of surgical pain

neuroleptanalgesic

-ˈjē-zik, -sik 

adjective