Abstract
ObjectiveTo evaluate the sub chronic toxicity of ethanolic extract of Anacyclus pyrethrum (A. pyrethrum) in albino wistar rats. MethodsIn sub chronic toxicity study ethanolic extract of A. pyrethrum prepared in 2%v/v tween 80 was administered to rats at the dose of 1 000 mg/kg per day for 90 days by oral gavage. A control group received only 2%v/v tween 80. During study period the rats were observed for changes body weight. At the end of dosing period rats relative organ weight of the liver, kidney, brain, lungs and spleen in rats treated with A. pyrethrum extract and control group were examined and also rats were subjected to haematological, biochemical and histopathological examination. ResultsThe administration of ethanolic extract of A. pyrethrum had no effect on body weight, growth and survival. There was no significant difference in the relative organ weight of the liver, kidney, brain, lungs and spleen in rats treated with A. pyrethrum extract and control group. In the present study, all the haematological and biochemical parameters at the end of dosing and observation period did not reveal difference between drug treated and control groups. Studies on histopathological examination of vital organs showed normal architecture suggesting no evidence of pathological lesions. ConclusionsThe studies on sub chronic toxicity reveals that no mortalities or evidence of adverse effects on oral administration of extract. The findngs of the study indicate that ethanolic extract of A. pyrethrum had no treatment related toxicological abnormalities and can be considerd as safe for long-term treatment.
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