| 摘要 |
Disclosed is an inhalant particularly for treating idiopathic (acute) or chronic interstitial pneumonia, which comprises, as an active ingredient, a lecithin-bound superoxide dismutase (PC-SOD) that can exert the activity of a superoxide dismutase (SOD) efficiently. Specifically disclosed is an inhalant characterized by comprising, as an active ingredient, a PC-SOD represented by general formula (I): SOD'(Q-B)m (I) (In the formula, SOD' represents a residue of a superoxide dismutase; Q represents a chemical cross-linkage; B represents a residue produced by removing an hydrogen atom from a hydroxy group in lysolecithin having the hydroxy group at position-2 in a glycerol moiety thereof; and m represents an average number of lysolecithin molecules bound to one superoxide dismutase molecule and is an integer of 1 or greater.)
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