CLINICALLY SIGNIFICANT PHARMACOKINETIC DRUG-HERBAL DIETARY SUPPLEMENTS INTERACTIONS

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Article Title:	CLINICALLY SIGNIFICANT PHARMACOKINETIC DRUG-HERBAL DIETARY SUPPLEMENTS INTERACTIONS
Authors:	Simona Conea1, Neli K. Olah2, Claudiu Morgovan3, Claudia C. Toma4, Adriana Dărăban5
Affiliation:	1Department of Clinical Pharmacy, Faculty of Medicine and Pharmacy, “Vasile Goldiş” Western University Arad, 2Department of Pharmaceutical Industry, Faculty of Medicine and Pharmacy, “Vasile Goldiş” Western University Arad. 3Department of Pharmaceutical Management and Marketing, Faculty of Medicine and Pharmacy, “Vasile Goldiş” Western University Arad. 4Department of Pharmacognosy, Faculty of Medicine and Pharmacy, “Vasile Goldiş” Western University Arad. 5Department of Inorganic Chemistry, Faculty of Medicine and Pharmacy, “Vasile Goldiş” Western University Arad.
Abstract:	Most commercially available botanical supplements exhibit considerable variability in phytochemical profiles, and label claims for “standardized” marker compounds can deviate considerably from actual content. Such variations can have significant influence on results of clinical studies evaluating dietary supplements efficacy or its herb-drug interaction risk. There are also plant extracts that can influence the drug disposition or can act as inhibitors or inductors of CYP isoforms. In summary, dosage forms containing standardized herbal extracts, when administered at per label recommended doses, do not pose a risk for clinically relevant herb-drug interactions. However, daily doses exceeding these doses or prolonged treatment may increase prospects for interactions.
Keywords:	pharmacokinetic, herb-drug interaction, dietary supplements, metabolic enzymes, transporter activity.
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*Correspondence:	Conea Simona, Department of Clinical Pharmacy, Faculty of Medicine and Pharmacy, Western University Arad, Tel. 0745709995, e-mail: suciu_simona@yahoo.com.