Acute and Chronic Administrations of Rheum palmatum Reduced the Bioavailability of Phenytoin in Rats: A New Herb-Drug Interaction
Figure 1
HPLC chromatograms of RP decoction before (a) and after (b) acid hydrolysis. 1: aloe-emodin, 2: rhein, 3: emodin, 4: chrysophanol, 5: physcion, IS: 2-methylanthraquinone.
