Effect of herb-drug interactions of Bacopa monnieri Linn. (Brahmi) formulation on the pharmacokinetics of amitriptyline in rats

  • Fowad Khurshid SunRise University; Department of Pharmaceutical Sciences
  • Jeyabalan Govindasamy Alwar Pharmacy College; Department of Pharmaceutical Chemistry
  • Habibullah Khalilullah Alwar Pharmacy College; Department of Pharmaceutical Chemistry
  • Mohammed Shivli Nomani Alwar Pharmacy College; Department of Pharmaceutical Chemistry
  • Mudassar Shahid Jamia Millia Islamia; Department of Biotechnology; Molecular Virology Laboratory
  • Md Ruhal Ain OPJS University; School of Pharmacy
  • Mohammad Sultan Alsultan King Saud University; College of Pharmacy; Department of Clinical Pharmacy
Keywords: Herbal drug interaction, Bacopa monnieri/effects, Amitriptyline/pharmacokinetics, CYP450, Bioavailability.

Abstract

Interactions between herbs and drugs may increase or decrease the pharmacological or toxicological effects of either component. Experimental data on the pharmacokinetic interactions between herbal products and drugs are limited. This study attempted to investigate the effect of Bacopa monnieri Linn. (Brahmi) formulation on the pharmacokinetics of amitriptyline in rats. In this study, rats were randomly divided into two groups (n = 6 each) which were served as a control (amitriptyline alone) and treatment group (amitriptyline with B. monnieri), respectively. Rats in the treatment group received B. monnieri (31 mg/kg/day) whereas the control group received normal saline by oral gavage for seven days before a single intragastric administration of 25 mg/kg amitriptyline. Plasma concentrations of amitriptyline were measured up to 24 h after its administration by a developed and validated high-performance liquid chromatography method. Pretreatment with B. monnieri produced a significant increase in the maximum plasma concentration (Cmax), area under the curve (AUC0-t) and elimination half-life (t1/2) of amitriptyline by 16.8%, 26.5%, and 15.5%, respectively, compared to amitriptyline alone. Moreover, oral clearance and volume of distribution (Vss) were decreased by 26.2% and 15.5% respectively. This study concluded that B.monnieri significantly enhanced the oral bioavailability of amitriptyline in rats.

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Published
2017-01-01
How to Cite
Khurshid, F., Govindasamy, J., Khalilullah, H., Nomani, M., Shahid, M., Ain, M., & Alsultan, M. (2017). Effect of herb-drug interactions of Bacopa monnieri Linn. (Brahmi) formulation on the pharmacokinetics of amitriptyline in rats. Brazilian Journal of Pharmaceutical Sciences (Impresso), 53(4), e17072. https://doi.org/10.1590/s2175-97902017000417072
Section
Articles