[Double blind study of the mucoregulating action of sodium thiophene carboxylate (author's transl)].

A double blind study of thiophene carboxylate in 32 chronic bronchitis patients, show an improvement of clinical and respiratory condition in the treated group. However, there is no increase in volume of expectoration and no fluidizing. The product acts as mucoregulator, the reorganization of fibrillary mucus allowing a better efficiency of mucociliary apparatus.