| 摘要 |
An optically active form of mepenzolate bromide is provided. An agent for ameliorating chronic obstructive pulmonary disease that contains the optically active form as an active ingredient and is based on a bronchodilator effect and an anti-inflammatory effect is also provided. (3R)- or (3S)-3-[(hydroxy)(diphenyl)acetoxy]-1,1-dimethylpiperidinium bromide (hereinafter referred to as "(R)- or (S)-mepenzolate bromide") is provided. An agent for ameliorating chronic obstructive pulmonary disease that contains the (R)- or (S)-mepenzolate bromide as an active ingredient is provided. Furthermore, an agent for ameliorating chronic obstructive pulmonary disease whose mode of administration is airway administration or inhalation administration is provided. |
