受体阻断药的特点是A:对受体亲和力高,内在活性低B:对受体无亲和力,有内在活性C:对受体无亲和力,无内在活性D:对受体有亲和力,有内在活性...

作者: rantiku 人气: - 评论: 0
问题 受体阻断药的特点是
选项 A:对受体亲和力高,内在活性低 B:对受体无亲和力,有内在活性 C:对受体无亲和力,无内在活性 D:对受体有亲和力,有内在活性 E:对受体有亲和力,无内在活性
答案 A
解析 拮抗药有较强的亲和力,但无内在活性,占据受体而拮抗激动药的效应。

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