Résumé
AIM To investigate the pharmacokinetic behaviors of four constituents in sugar-free Xinnaosu Granules in rat plasma.METHODS Rats intragastrically administered with the 0.5％ CMC-Na suspension of this drug (3 g/kg) had their blood collected for the determination of plasma concentration by UHPLC-MS/MS,after which pharmacokinetic parameters were calculated by DAS2.0 software.RESULTS The plasma concentrationtime curves for tanshinone Ⅱ A,salvianolic acid B,ginsenoside Rg1,notoginsenoside R1 accorded with two compartment model,with the t1/2values of (1.68 ±0.56),(4.13 ±0.87),(3.62 ±0.87),(9.77 ±3.12) h,Tmax values of (0.51 ±0.19),(1 ±0),(6 ±0),(4.00 ±1.09) h,Cmax values of (0.42 ±0.08),(0.17 ±0.02),(0.46±0.11),(0.41 ±0.12) mg/L,respectively.CONCLUSION All the four constituents in sugar-free Xinnaosu Granules demonstrate high bioavailabilities.