Although tetrandrine prolongs slightly the APD 90 of FAP(No statistic difference),it shortens obviously the APD 20 and APD 90 of SAP.

• 汉防己甲素虽亦轻度延长了 FAP的 APD90 ,但差异无统计学意义。 它主要缩短了 SAP的 APD2 0 、APD90 。