FU Guosheng,SHEN Jie,HUA Jiekai,et al.Effects of Tongxinluo capsules on pharmacokinetics of rivaroxaban in rats[J].ZHONGGUO YAOFANG,2025,36(23):2930-2934.
FU Guosheng,SHEN Jie,HUA Jiekai,et al.Effects of Tongxinluo capsules on pharmacokinetics of rivaroxaban in rats[J].ZHONGGUO YAOFANG,2025,36(23):2930-2934. DOI: 10.6039/j.issn.1001-0408.2025.23.08.
Effects of Tongxinluo capsules on pharmacokinetics of rivaroxaban in rats
To investigate the impact of Tongxinluo capsules on the pharmacokinetics of rivaroxaban in rats.
METHODS
2
Rats were randomly divided into rivaroxaban alone group (2.70 mg/kg), low-dose Tongxinluo capsules combined with rivaroxaban group (Tongxinluo capsules 0.28 g/kg+rivaroxaban 2.70 mg/kg), and high-dose Tongxinluo capsules combined with rivaroxaban group (Tongxinluo capsules 0.84 g/kg+rivaroxaban 2.70 mg/kg), with five rats in each group. Following seven consecutive days of gavage with normal saline or the corresponding doses of Tongxinluo capsules, the rats were subjected to a final gavage administration of rivaroxaban. Blood samples were collected at 0 h prior to the final administration and at 0.16, 0.33, 0.50, 0.75, 1, 1.5, 2, 4, 8, 12 and 24 h post-final administration. The plasma concentration of rivaroxaban in rats was determined by high-performance liquid chromatography-tandem mass spectrometry. The pharmacokinetic parameters [peak concentration (
c
max
), half-life (
t
1/2
), area under the drug concentration time curve (AUC), mean residence time (MRT), clearance (CL), apparent volume of distribution (
V
d
) and peak time (
t
max
)
]
of each group were calculated using a non-compartmental model of MonolixSuite 2023R1 pharmacokinetic software.
RESULTS
2
Compared with rivaroxaban alone group, AUC
₀₋
ₜ
and AUC
0-∞
of rivaroxaban in rats were increased significantly in high-dose Tongxinluo capsules+rivaroxaban group (
P
<0.05), while CL was decreas
ed significantly (
P
<0.05);
t
1/2
and MRT were shortened,
t
max
was extended,
c
max
was increased, while
V
d
was decreased, but there was no statistical significance (
P
>0.05).
CONCLUSIONS
2
Rivaroxaban combined with Tongxinluo capsules significantly increases the plasma exposure of rivaroxaban in rats. Potential drug-drug interactions should be considered in clinical practice based on the co-administration conditions.
HINDLEY B , LIP G H , MCCLOSKEY A P , et al . Pharmacokinetics and pharmacodynamics of direct oral anticoagulants [J ] . Expert Opin Drug Metab Toxicol , 2023 , 19 ( 12 ): 911 - 923 .
KUBITZA D , BECKA M , ROTH A , et al . Absence of clinically relevant interactions between rivaroxaban:an oral,direct factor Ⅹa inhibitor and digoxin or atorvastatin in healthy subjects [J ] . J Int Med Res , 2012 , 40 ( 5 ): 1688 - 1707 .
KUBITZA D , BECKA M , ZUEHLSDORF M , et al . Effect of food,an antacid,and the H 2 antagonist ranitidine on the absorption of BAY 59-7939 (rivaroxaban),an oral,direct factor Ⅹa inhibitor,in healthy subjects [J ] . J Clin Pharmacol , 2006 , 46 ( 5 ): 549 - 558 .
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Related Institution
Dept. of Pharmacy, the Second Hospital of Hebei Medical University
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