PROBLEM TO BE SOLVED: To provide a new nitrogen monoxide production inhibitor and an anti-inflammatory agent using the same.SOLUTION: Technical features of this invention are as follows: (1) an anti-inflammatory agent including an extract of cherry as the effective ingredient (2) a nitrogen monoxide production inhibitor including an extract of cherry as the effective ingredient (3) an agent of (1) or (2) using an extract of cherry blossoms as the cherry and (4) a nitrogen monoxide production inhibitor including caffeoyl glucose as the effective ingredient.