Fig. 1

Effect of methanolic extract of P. niruri on carrageenan induced paw edema after 6 h. a = Normal control: no erythema and inflammation were observed. b Carrageenan control: severe erythema and swelling were observed. c 20 mg/kg ibuprofen: mild amount of erythema and swelling were observed. d 100 mg/kg methanolic extract of P. niruri: moderate amount of erythema and swelling were observed e 200 mg/kg methanolic extract of P. niruri: moderate amount of erythema and swelling were observed. f 400 mg/kg methanolic extract of P. niruri: mild amount of erythema and swelling were observed. The small arrow indicates the absence of swelling and erythema whereas the large arrow indicates severe swelling and erythema in the rats paw