Effect of resveratrol treatment on the doxorubicin level in Ehrlich ascites cell. Doxorubicin was injected (20 mg/kg i.p.) in tumor-bearing mice treated with 10 mg /kg,i.p. RSVL in simultaneous manner (red box) or saline (blue diamond suit). Each data represents the mean ± S.D. of six mice. aSignificantly different from DOX after 3 hours of treatment at P-value ≤ 0.05. bSignificantly different from DOX after 24 hours of treatment at P-value ≤ 0.05. cSignificantly different from DOX after 48 hours of treatment at P-value ≤ 0.05.