Trichinellosis is a serious food-borne parasitic disease with serious community health effects, mainly causing muscle damage with no recent approved treatment. This study aimed to assess the therapeutic effect of gallic acid (GA) as a potent antioxidant against the encysted phase of in male (BALB/c) mice alone or combined with albendazole (ALB) and to detect their synergistic effects on the histology and ultrastructure of skeletal and cardiac muscles and some biochemical blood analyses. Forty male mice were randomly divided into five groups (8 mice/group). 1 group: the negative control received only distilled water, 2 group: the positive control (infected control group without treatment), 3 group: infected group plus treatment with ALB (50 mg Kg orally), and 4 group: infected group and then treated with GA (30 mg Kg orally) and finally 5 infected group treated with a combination of both ALB and GA. Aspartate and Alanine aminotransferase, Lactate dehydrogenase, alkaline phosphatase, C-reactive protein, Interleukin-4 and Creatine kinase were used as biochemical markers of hepatic and cardiac toxicity and inflammation. Malondialdehyde level, catalase, superoxide dismutase, and glutathione peroxidase were evaluated in heart tissue homogenates beside histological and ultra-structural examination of heart and skeletal muscles beside parasitological analyses. Results showed that the reduction % of sp. larvae g in muscles of the group treated with the combination of GA and ALB showed overall reduction percentages. Oral administration of 30 mg kg of GA led to infection reduction of than ALB treated group. Both administration of ALB beside GA showed the best treatment group that resulted in high infection reduction besides amelioration of both biochemical markers and restoration of histological and ultrastructures to normal state. In conclusion, GA is highly effective against which could be a promising alternative antioxidant drug and the GA effect was higher in the case of combination with ALB. This experiment provides a basis for further exploration of potent activities of other antioxidants against different phases of and the reduction of any health hazards prospectively.