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Xenobiotica
the fate of foreign compounds in biological systems
Volume 51, 2021 - Issue 10
163
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Animal Pharmacokinetics and Metabolism

Effect and underlying mechanism of morin on the pharmacokinetics of diclofenac sodium in rats

, , , , , & show all
Pages 1181-1187 | Received 20 Jul 2021, Accepted 08 Sep 2021, Published online: 19 Sep 2021
 

Abstract

1. Morin, a natural flavonol, is present in many plants. It has anti-inflammatory and immunomodulatory activities and is often used as an adjuvant treatment for arthritis. Diclofenac sodium is the first-choice drug in the treatment of rheumatoid arthritis. However, the herb-drug interaction (HDI) between morin and diclofenac sodium remains unclear.

2. The aim of the present research was to investigate whether and how morin affect the pharmacokinetic profile of diclofenac sodium.

3. The enzyme kinetic and pharmacokinetic studies showed that morin significantly accelerated the metabolism and reduced systemic exposure of diclofenac sodium. Interestingly, the effect of morin on the pharmacokinetic profile of diclofenac sodium was not in a dose-dependent manner. Therefore, the effect of morin on P-glycoprotein (P-gp) was further investigated.

4. The results implied that the influence mechanism of morin on the pharmacokinetic of diclofenac sodium might be related to CYP2C9 and P-gp. Attention should be paid to the risk of HDI between morin and diclofenac sodium in clinical practice.

Disclosure statement

The authors of this manuscript declare that there are no conflicts of interest.

Additional information

Funding

The research was financially supported by the National Natural Science Foundation of China [No. 81773970], and the “Double First-Class” University project [No. CPU2018GY10].

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