Abstract: Novel 10-(piperidino-alkyl)-phenothiazines of the formula ##STR1## wherein X is selected from the group consisting of hydrogen, chlorine, --CF.sub.3, --OCH.sub.3 and SCH.sub.3, B and R are individually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, Z' is selected from the group consisting of hydrogen and alkyl of 1 to 10 carbon atoms, p is 0 or 1, n is 0, 1 or 2 and A is selected from the group consisting of hydrogen, --COOR.sub.2 and --COR.sub.1, R.sub.2 is linear alkyl of 1 to 15 carbon atoms and R.sub.1 is selected from the group consisting of alkyl of 1 to 18 carbon atoms optionally containing a double bond or --O-- and a polymethoxyphenyl and their non-toxic, pharmaceutically acceptable acid addition salts having neuroleptic, analgesic, spasmolytic and antihistaminic activity and their preparation and novel intermediates.

Abstract: Novel phenothiazines of the formula ##SPC1##Wherein X is selected from the group consisting of hydrogen, chlorine, trifluoromethyl, methylthio and methoxy, B is selected from the group consisting of hydrogen and alkyl of 1 to 3 carbon atoms, p is 0 or 1, R is selected from the group consisting of hydrogen and alkoxy of 1 to 3 carbon atoms and R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen and alkyl of 1 to 3 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having neuroleptic activity and frequently antihistaminic activity and their preparation.

Abstract: Novel [4'-(3"-indolyl)-piperidino]-alkyl-arylketones of the formula ##SPC1##Wherein R is selected from the group consisting of hydrogen and alkoxy of 1 to 5 carbon atoms, R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms, n is 2 or 3 and X is selected from the group consisting of hydrogen, fluorine, chlorine and bromine and their non-toxic, pharmaceutically acceptable acid addition salts having central nervous system depressant activity.