抄録
We report a case of a 4-year-old boy with difficult asthma who responds poorly to the recommended therapy. On addition of suplatast tosilate to his maintenance regimen, a remarkable improvement was observed in his asthma and in the atopic dermatitis that he also suffered. Suplatast tosilate is therefore a potential add-on medication for the treatment of difficult asthma and atopic dermatitis, although further investigation is warranted.