Novel therapeutic 1,4-dihydropyridine derivatives of the formula
in which:
A is an optionally substituted non-fused azole moiety;
R is a lower alkyl group;
X is -CH₂- , -S- , -SO- or -SO₂- ;
n is 5, 6, 7 or 8; and
Ar is a phenyl group substituted once or twice by NO₂, CF₃ or Cl groups.
A 1,4-dihydropyridine derivative of the formula I: ##STR1## is provided in which: A is an azole moiety; R is a C.sub.1 -C.sub.4 alkyl group; X is --CH.sub.2 --, --S--, --SO-- or --SO.sub.2 --; n is 5, 6, 7 or 8; and Ph is a phenyl group substituted once or twice by NO.sub.2, CF.sub.3 or Cl groups.