This experimental study investigated the morphological changes in white rat liver tissue subjected to moderate ischemia (5 minutes) after prior administration of the antioxidant Mexidol. Histological examination 15 minutes post-ischemia showed no significant alterations in lobular architecture, hepatocyte integrity, or portal tract structures. Minor changes included slight edema, widened Disse spaces, and dilated, blood-congested sinusoids. Mild dystrophic changes were limited to some hepatocytes near the portal tracts. The results suggest a cytoprotective role of Mexidol and enhanced antioxidant defense in mitigating ischemia-induced liver injury, keeping changes within the limits of compensatory structural adaptation.