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We investigated the possible protective effects of pentoxifylline (PTX) and cilostazol on doxorubicin (Dox)-induced cardiotoxicity in rats. Rats are randomly assigned into: saline, Dox (I.P. 2.5 mg/kg every other day six injections over two weeks), Dox (I.P. 2.5 mg/kg every other day six injections over two weeks then PTX (50 mg/kg/day/oral), Dox (I.P. 2.5 mg/kg) every other day six injections over two weeks then cilostazol (50 mg/kg/day/oral). After 21 days these animals were sacrificed and serum CK-MB and troponin I levels were determined. Malondialdehyde (MDA), superoxide dismutase (SOD), tumor necrosis factor (TNF-), interleukin-6 (IL-6), and caspase3 levels also were determined. Heart sections were examinedhistopathologically. Treatment with PTX and cilostazol decreased troponin I and CK-MB while increased SOD activity with decrements in MDA, IL-6, TNF-, and caspase-3 levels with attenuation of the changes in cardiac histopathology. PTX and cilostazol exert protective effects against Dox-induced cardiotoxicity.

Pentoxifylline and Cilostazol Against Rat Heart Injuries Induced by Doxorubicin