the quotients of retardation ( rd = ratio of the duration at 1/2 cpmax , rc = ratio of 1/2 cpmax , quinidine sulfate as reference ) is calculated for quinidine longo : rd = 1.42 +/- 0.14 , rc = 0.75 +/- 0,05 and for quinidine duriles : rd = 1.79 +/- 0.21 , rc = 0.52 +/- 0.07 .
C0034415
quinidine sulfate
C0034414
quinidine