Representative photomicrographs showed effects of KPEt on INH-RIF induced histological changes in the rat livers. Representative photomicrographs (magnification ×40). Group I: liver sections treated with 0.9% normal saline showing normal liver architecture. Group II: only INH-RIF induced liver showing portal inflammation, vacuolation, and fatty changes. Group III: liver sections of INH-RIF and Silymarin treated liver showing normal architecture. Group IV: liver sections of INH-RIF and KPEt 200 mg/kg b.wt treated group showing mild inflammation and steatosis. Group V: liver sections of INH-RIF and KPEt 400 mg/kg b.wt treated showing almost normal architecture.