Pharmacokinetic Interaction between Magnolol and Piperine in Rats

Autor: Jian-Hui Xie, Xiao-Ying Chen, Cailan Li, Xiao-Ping Lai, Xiu-Ting Yu, Yong-Zhuo Liang, Yi-Feng Zheng, Xiu-Fen Wang, Ji Lin, Guanghua Yang, Zi-Ren Su
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Tropical Journal of Pharmaceutical Research; Vol 15, No 3 (2016); 631-638
ISSN: 1596-5996
1596-9827
Popis: Purpose: To investigate the pharmacokinetic mechanism of interaction between magnolol and piperine when co-administered to rats.Methods: The rats were divided into five groups as follows: magnolol group (625 mg/kg); low dose of piperine group (20 mg/kg); high dose of piperine group (40 mg/kg); low dose of piperine + magnolol group; or high dose of piperine + magnolol group. Plasma samples were collected at regular time intervals after administration of a single dose of magnolol (625 mg/kg, p.o.) alone or piperine (20 or 40 mg/kg, p.o.) in the presence or absence of magnolol (625 mg/kg, p.o.). The concentrations of magnolol and piperine in plasma were measured by a validated high performance liquid chromatography (HPLC) method.Results: Compared with control, the groups given magnolol alone, concomitant administration of piperine and magnolol resulted in significant decrease (p < 0.01) in the AUC and Cmax of magnolol. Interestingly, compared with administration of piperine alone (20 mg/kg), co-administration with magnolol did not significantly (p > 0.05) alter the pharmacokinetic parameters of piperine. However, at high dose (40 mg/kg) of piperine, Cmax of piperine significantly decreased from 4.30 ± 1.47 to 2.50 ± 0.78 μg/mL (p < 0.05).Conclusion: Co-administration of magnolol and piperine decreases plasma concentration of either drug in rats, suggesting that concurrent use of magnolol with piperine or piperine-containing diets would require close monitoring for potential interactions.Keywords: Magnolol, Piperine, Pharmacokinetic interaction, Co administration
Databáze: OpenAIRE