Pharmacokinetic interaction studies of tanshinones with tolbutamide, a model CYP2C11 probe substrate, using liver microsomes, primary hepatocytes and in vivo in the rat.Pharmacokinetic interaction studies of tanshinones with tolbutamide, a model CYP2C11 probe substrate, using liver microsomes, primary hepatocytes and in vivo in the rat.
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The results of Danshen and its lively parts (tanshinone I, tanshinone IIA, dihydrotanshinone and cryptotanshinone) on tolbutamide 4-hydroxylation was investigated within the rat. Danshen (0.125-2mg/ml) decreased 4-hydroxy-tolbutamide formation in vitro