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支气管扩张剂通常分为三大类，一类是β₂受体激动剂，一类是抗胆碱能药物，还有一类是茶碱类药物。各种类别的药物都分为长效制剂和短效制剂，具体如下：一、β₂受体激动剂：1、短效的β₂受体激动剂：包括特布他林、沙丁胺醇等药物；2、长效的β2受

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支气管扩张剂有哪些药

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