The effects of an orally administered fraction (TB5) from the fruits of Tenninalia belerica in experimental liver injury induced by carbon tetrachloride (CC4) were studied. Hexobarbitone-induced sleep, zoxazolamineinduced paralysis, transaminases, bilirubin, total protein in serum and microsomal lipid peroxidation and triglycerides in liver were used as indices of liver injury.A significant hepatoprotective effect was observed as evident from shortened hexobarbitone 'sleep time' and zoxazolamine 'paralysis time' when compared with CCI, alone. Pre-and post-treatment of TB5 reduced, in a dose dependent manner, the elevated levels of serum tranaminases and bilirubin in rats, thus demonstrating its effect both as a prophylactic and curative. Its protective effects on microsomal lipid peroxidation and triglycerides in liver suggest a restorative effect in the process of CCC-induced liver damage. TB5 did not show any signs of toxicity up to oral doses of 3.2 g/kg in mice.