Pharmacologically active amides and pharmaceutical compositions containing them

A pharmaceutical composition containing in association with one or more diluents or adjuvants which are compatible and pharmaceutically acceptable, at least one racemic or levoratatory compound of formula:

• ##STR20## in which Z.sub.1 and Z.sub.2 , which may be identical or different, denote hydrogen, halogen, alkyl or alkxoy of 1 to 3 carbon atoms each, nitro, or trifluoromethyl, Z is bound in the ortho or para position with respect to the nitrogen atom and denotes phenyl, thienyl, pyridyl or phenyl substituted by one or two substituents chosen from halogen, alkyl and alkoxy of 1 to 4 carbon atoms each, trifluorometyl and nitro, the chain--X--(CH.sub.2).sub.n --(CHR).sub.m --CO--NR.sub.1 R.sub.2 is bound in the ortho position or para position with respect to the nitrogen atom, R denotes hydrogen or alkyl of 1 to 3 carbon atoms, R.sub.1 and R.sub.2, which may be identical or different, denote a linear or branched alkyl of 1 to 6 carbon atoms each, cycloalkyl of 3 to 6 carbon atoms, phenyl, phenylalkyl or cycloalkylalkyl in each of which the alkyl contains 1 to 3 carbon atoms and in which the cycloalkyl contains 3 to 6 carbon atoms or an alkenyl of 3 to 6 carbon atoms in which the double bond is not situated in the 1,2 position with respect to the nitrogen atom,
• R.sub.1 and R.sub.2 can also form, together with the nitrogen atom to which they are attached, a piperidine, or thiomorpholine ring, X denotes >CH--R.sub.3, >N--R.sub.4, >SO or >SO.sub.2, oxygen, or sulphur,
• R.sub.3 denotes hdyrogen or alkyl of 1 to 3 carbon atoms,
• R.sub.4 denotes alkyl of 1 to 3 carbon atoms,
• m is 0 or 1, and
• n is 0, 1 or 2,
• provided that, when X denotes >SO, >SO.sub.2 or >N--R.sub.4, the sum m+n is equal to at least 1, and, when Z is in the ortho position with respect to the nitrogen atom, X denotes an oxygen atom and R denotes hydrogen, the sum m+n is other than 1, and, when X denotes --CH.sub.2 and R denotes hydrogen, the sum m+n is other than 2, and excluding 2-phenyl-4-quinolyl N,N-dimethylcarbamate, or a mixture of stereoisomeric compounds of formula (I) or, where it can exist, a salt of such a compound with a pharmaceutically acceptable acid.