Pharmaceutical preparations

A pharmaceutical preparation comprising an effective amount of a pharmaceutically active sulphonamide and a solvent containing a glycerol lower-alkyl ether selected from glycerol 1-methyl ether, glycerol 1-ethyl ether, glycerol 1,3-dimethyl ether and glycerol,1,2-dimethyl ether, said glycerol lower-alkyl ether and said solvent being present in an amount sufficient to dissolve said active ingredient.