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二乙脲心安为一选择性β_1受体拮抗剂,兼有部分的β_2受体兴奋和直接的血管扩张之作用,使其副作用少于传统的β受体阻滞剂。
Dimethylurea is a selective β 1 -receptor antagonist with partial β 2 -receptor excitability and direct vasodilatation with fewer side effects than traditional β-blockers.