Results Consumption of antihistamine agents decreased in 2004,and kinds of drugs selected had no obvious change,but it has concentrated phenomena.

• 结果抗组胺药品种变化不大,但使用有集中现象,用药金额2004年有所下降,目前最常用的是酮替芬、西替利嗪、羟嗪和氯雷他定等。