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Picroliv, the active constituent of the plant Picrorhiza Kurroa, showed significant hepatoprotective as well as anticholestatic activity against rifampicin-induced hepatic damage. Rifampicin (50 mg/kg ip × 6 days) resulted in the reduction of bile flow as well as its contents (bile salts and bile acids) in the conscious rat and anesthetized guinea pig. Further, it also caused a decrease in the viability and rate of oxygen consumption in isolated rat hepatocytes. Picroliv treatment significantly reversed the altered parameters of bile and hepatocytes. The hepatoprotective drug silymarin on comparison was found to be less active than picroliv. Drug Dev. Res. 40:299–303, 1997.
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Saraswat et al. (1997) studied this question.
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