2018
DOI: 10.1590/s2175-97902017000417072
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Effect of herb-drug interactions of Bacopa monnieri Linn. (Brahmi) formulation on the pharmacokinetics of amitriptyline in rats

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… Show more

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Cited by 4 publications
(4 citation statements)
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“…Studies suggest that extracts derived from this plant can contribute to herb–drug interactions, as they have an inhibitory effect on the activity of many cytochrome isoenzymes such as CYP2C9, CYP2C19, CYP1A2, CYP2D6, and CYP3A4 ( Ramasamy et al, 2014 ). Animal studies have shown that Bacopa monnieri extracts increase intestinal absorption and reduce first-pass metabolism of amitriptyline through the inhibition of CYP3A and CYP2C and decrease oral clearance of this drug ( Khurshid et al, 2018 ). To the best of our knowledge, there is only one study presenting adverse events related to the drug interaction with this adaptogen.…”
Section: Discussionmentioning
confidence: 99%
“…Studies suggest that extracts derived from this plant can contribute to herb–drug interactions, as they have an inhibitory effect on the activity of many cytochrome isoenzymes such as CYP2C9, CYP2C19, CYP1A2, CYP2D6, and CYP3A4 ( Ramasamy et al, 2014 ). Animal studies have shown that Bacopa monnieri extracts increase intestinal absorption and reduce first-pass metabolism of amitriptyline through the inhibition of CYP3A and CYP2C and decrease oral clearance of this drug ( Khurshid et al, 2018 ). To the best of our knowledge, there is only one study presenting adverse events related to the drug interaction with this adaptogen.…”
Section: Discussionmentioning
confidence: 99%
“…In a study with male Wistar albino rats, when compared to amitriptyline alone, the pre‐treatment with B. monnieri enhanced the oral bioavailability of amitriptyline as verified by a significant increase in C max , AUC and t 1/2 by 16.8%, 26.5%, and 15.5%, respectively. Furthermore, it was observed a decrease of oral clearance and volume of distribution (Khurshid et al, 2017). The authors suggested a pharmacokinetic interaction mediated by increased intestinal absorption and reduced first‐pass metabolism of amitriptyline, in the intestine and liver, through inhibition of CYP2C and CYP3A.…”
Section: Herb Interactions With Drugs Acting On the Cns And Pnsmentioning
confidence: 99%
“…The authors suggested a pharmacokinetic interaction mediated by increased intestinal absorption and reduced first‐pass metabolism of amitriptyline, in the intestine and liver, through inhibition of CYP2C and CYP3A. The enhanced bioavailability of amitriptyline was also the outcome for the pharmacokinetic interaction with C. asiatica , hypothesized to be mediated by the inhibition of CYP3A4 and CYP2D6 in rat models (Khurshid et al, 2018).…”
Section: Herb Interactions With Drugs Acting On the Cns And Pnsmentioning
confidence: 99%
“…[57] According to a comprehensive article, the medicinal herb Bacopa has the ability to alter the pharmacokinetics of amitriptyline in rats, via inhibition of CYP2C and CYP3A enzymes, Bacopa monnieri mediated increased intestinal absorption and decreased first-pass metabolism of amitriptyline in the intestine and liver, indicating an herb-drug interaction. [378]…”
Section: Bacopa Monnieri Toxicity Spectrum and Herb-drug Interactionsmentioning
confidence: 99%