Abstract: N-piperazinylalkanoylanilides of the formula ##STR1## wherein n is 0, 1 or 2, each of R and R.sub.1 is H or alkyl, and each of R.sub.2, R.sub.3 and R.sub.4 is H, halogen, alkyl, hydroxyalkyl, alkoxy, aralkoxy, alkylthio, aralkylthio, alkylsulphonyl, alkylsulphenyl, NO.sub.2, NH.sub.2, alkylamino, acylamino, ureido, alkylureido, alkylsulphonylamino, CF.sub.3, acyl, CN, COOH, alkoxycarbonyl, NH.sub.2 CO, SO.sub.3 H, guanidinosulphonyl, carbamoyloxy, OH, acyloxy, alkylsulphonyloxy, alkylenedioxy or SO.sub.2 NR.sub.5 R.sub.6 wherein each of R.sub.5 and R.sub.6 is H, alkyl, aryl or acyl and their pharmaceutically acceptable acid addition salts, are antihypertensive agents.

Abstract: The .omega.-[4-(2-pyridyl)-piperazino]-alkanoylanilide compounds having the structural formula (I): ##STR1## wherein n is 1, 2 or 3, each of R, R.sub.1, R.sub.2 R.sub.3, and R.sub.4 is independently hydrogen, halogen, alkyl, alkoxy, OH, NH.sub.2, CF.sub.3, CN, alkylthio, 1-hydroxyalkyl, alkanoyl, NH.sub.2 CO, NH.sub.2 SO.sub.2, alkoxycarbonyl, alkylsulfonyl, benzyloxy, alkanoylamino, NH.sub.2 CONH, 3-phenylureido, 3-alkylureido or alkoxyoxalylamino, R.sub.5 is hydrogen or alkyl, and R.sub.6 is hydrogen or alkoxy, and the pharmaceutically acceptable salts thereof, are effective antianaphylactics, antibronchospastics, antihistaminics, sedatives, analgesics, antiserotonics and blood-pressure-lowering agents.