Aryloxypyridine for treating hyperglycaemia

A pharmaceutical composition for the treatment of hyperglycaemia in humans in the form of a beverage, foodstuff, tablet, linguet, powder, capsule, slurry, troche, lozenge or syrup or in a form suitable for administration to humans which comprises a blood sugar lowering amount of a compound of the formula ##STR17## or a pharmaceutically-acceptable, non-toxic acid addition salt thereof, wherein Py is 2-, 3- or 4-pyridyl unsubstituted or substituted by lower alkyl;

• A is a group of the formula ##STR18## wherein ALK is straight or branched chain alkylene of 1 to 6 carbon atoms;
• R.sub.1 is a carboxylic acid group or a group which is converted in the human body to a carboxylic acid group;
• and R.sub.2, R.sub.3, and R.sub.4 are each hydrogen, a carboxylic acid group, a group which is converted in the human body to a carboxylic acid group, lower alkanoyl, hydroxyl, lower alkoxy, hydroxymethyl, nitro, halo or amino, provided that R.sub.1 is not methyl, cyano, or methoxycarbonyl when Py is 2-pyridyl or 5-ethylpyridyl-2-yl and A is --O-CH.sub.2 -- and R.sub.2, R.sub.3 and R.sub.4 are hydrogen or halo, in combination with a pharmaceutically-acceptable non-toxic, inert diluent or carrier therefor.