如果你对阿司匹林过敏，其他抗血小板药物可供选择。

If you are allergic to aspirin, other anti-platelet medicines are available.

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背景：氯吡格雷是一种导致凝血时间延长的抗血小板药物。

Background: Clopidogrel is an anti-platelet agent which causes an increase in bleeding time.

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但是这些抗血小板药物也增加出血的风险，包括上消化道出血。

But these antiplatelet drugs also increase the risk of bleeding, including upper GI bleeding.

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