A systemic analysis of herbs and formula used in China. The result showed that the most commonly used formula was Ma Xin Shi Gan Tang, the herb was Gan Cao, herbs-pair: Cang zhu and Ma Huang (early-stage), Shi Gao and Ma Huang (moderate-stage), Ban Xia and Sha Ren (late-stage) respectively。

新冠肺炎临床最常见的是以初期、中期、重症期、恢复期为分期标准,频次最高的证型为内闭外脱证,使用次数最多的方剂为麻杏石甘汤,使用频次最高的药物是甘草,在疾病初期苍术与麻黄合用的频次最高,在疾病中期石膏与麻黄合用频次最高,在疾病后期半夏与砂仁合用的频次最高。

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