RESUMO
OBJECTIVE: To study pharmacokinetics of debydroandrographolide, that is a main active component in Chuanxinlian tablet, in healthy Chinese volunteers. METHODS: Eight volunteers were chosen for a single dose of two Chuanxinlian tablet drug concentrations in plasma were measured by HPLC-MS method and the pharmacokinetic parameters were calculated by PK Solution 2.0 software. RESULTS: t(1/2) ka, t(1/2) alpha, t/(1/2) beta, Cmax, tmax and AUCO-t were (0.51 +/- 0.28) h, (0.60 +/- 0.33) h, (3.62 +/- 1.16) h, (147.30 +/- 53.29) microg x L(-1), (1.50 +/- 0.21) h, and (256.63 +/- 64.18) microg x h x L(-1), respectively. CONCLUSION: Dehydroandrographolide has rapid absorption and long elimination rate after oral administration. The results can provide an evidence for the safety and efficiency of Chuanxinlian tablet in clinical application.