Study on inhibitory effect of water extract of Polygonum multiflorum on CYP1A2 and CYP2E1 enzymatic activities and mRNA expressions in rat liver In vitro inhibition of five traditional Chinese medicine injections on rat liver microsomal CYP3A Compatible effects of Corydalis Rhizoma and Angelicae Dahuricae Radix components on enzymatic reaction kinetics of dl-tetrahydropalmatine in rat liver microsomes