Effect of honey on CYP3A4, CYP2D6 and CYP2C19 enzyme activity in healthy human volunteers

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Abstract

Honey is a common food supplement but not many studies have studied honey and drug interaction. This study investigates the influence of 7 days of honey administration on the activity of CYP3A4, CYP2D6 and CYP2C19 drug-metabolizing enzymes in healthy volunteers by using appropriate biomarker and probe drugs. A within-group pharmacokinetic study was done in 12 healthy volunteers. Urine samples (0-8 hr) were collected after administration of 30 mg of oral dextromethorphan (probe drug for CYP2D6) for analysis of dextromethorphan and dextrorphan. A plasma sample (4 hr) was collected after administration of 200 mg of oral proguanil (probe drug for CYP2C19) for the analysis of proguanil and cycloguanil. Urine samples (0-24 hr) were collected for the analysis of 6β-hydroxycortisol (biomarker for CYP3A4). The volunteers were administered honey for 7 days. Subsequently blood and urine samples were collected after drug dosing as before. These samples were analysed for drug and metabolite concentrations in urine and plasma using high performance liquid chromatography method. Seven days of honey administration resulted in statistically significant increase in 24-hr urinary excretion of 6β-hydroxycortisol. However, the metabolic ratios of dextromethorphan and proguanil were not significantly altered after 7 days of honey administration. Honey obtained from Western Ghats of southern India may induce CYP3A4 enzyme activity but not CYP2D6 and CYP2C19 enzyme activities. © 2007 The Authors.

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APA

Tushar, T., Vinod, T., Rajan, S., Shashindran, C., & Adithan, C. (2007). Effect of honey on CYP3A4, CYP2D6 and CYP2C19 enzyme activity in healthy human volunteers. Basic and Clinical Pharmacology and Toxicology, 100(4), 269–272. https://doi.org/10.1111/j.1742-7843.2006.00039.x

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