RT Journal Article SR Electronic T1 Multiple Nighttime Doses of Valerian (Valeriana officinalis) had Minimal Effects on CYP 3A4 activity and No Effect on CYP 2D6 Activity in Healthy Volunteers JF Drug Metabolism and Disposition JO Drug Metab Dispos FD American Society for Pharmacology and Experimental Therapeutics DO 10.1124/dmd.104.001164 A1 Jennifer L Donovan A1 C. Lindsay DeVane A1 Kenneth D Chavin A1 Jun-Sheng Wang A1 Bryan B Gibson A1 Holly A Gefroh A1 John S Markowitz YR 2004 UL http://dmd.aspetjournals.org/content/early/2004/08/24/dmd.104.001164.abstract AB