definiens: means ( a ) ( + /-)-N, N - dimethyl - l -phenyl-3-(1 - naphthalenyloxy)-propanamine, ( b ) ( S)-(+)-N, N - dimethyl - l - phenyl-3-(1 - naphthalenyloxy)-propanamine, ( c ) ( R)-(-)-N, N - dimethyl - l - phenyl-3-(1 - naphthalenyloxy)-propanamine,(d ) ( + /-)-N, N - dimethyl - a-[2-(1 - naphthalenyloxy ) ethyl - benzenemethanamine, ( e ) ( S)-(+)-N, N - dimethyl - a-[2-(1 - naphthalenyloxy ) ethyl - benzenemethanamine, ( f ) ( R)-(-)-N, N - dimethyl - a-[2-(1 - naphthalenyloxy ) ethyl - benzenemethanamine, ( g ) any pharmaceutically acceptable salt of any of the foregoing, or ( h ) any active metabolite ofany of the foregoing, including without limitation mono - desmethyl dapoxetine and di - desmethyl dapoxetine