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Effects of the standardized ethanolic extracts of Curcuma xanthorrhiza and aspirin (100 mg/kg) on formalin induced pain in rats 30 min before subplantar injection of 2.5% formalin (0.05 mL) on the hindpaw of rats. 100, 200 and 400 mg/kg represent the dose of Curcuma xanthorrhiza. Data are mean ± SEM values for the paw licking time measured in early phase (0–5 min) and late phase (15–30 min). *p < 0.05 compared to the control group, treated with cosolvent (ANOVA, Dunnett’s test).
