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采用加速试验和留样观察2种方法对心泰片进行了稳定性考察，依样品中总黄酮含量变化求得室温下有效期（t0.9）为5．0a。
Accelerated test and retention sample were used to observe the stability of Xintai tablets. The effective period (t0.9) was 5.0a at room temperature according to the change of total flavonoid content in the samples.