Evaluation of acute and subacute toxicity of aqueous extract of Crassocephalum rubens leaves in rats (original) (raw)

Journal of ethnopharmacology, 2016

Abstract

Crassocephalum rubens is found throughout tropical Africa including the Indian Ocean islands. The leaves are commonly eaten in form of soups and sauces in South-Western Nigeria, also in other humid zones of Africa. Traditionally, it is used as an antidote against any form of poisoning; used to treat stomach and liver complaints; and externally to treat burns, sore eyes, earache, leprosy and breast cancer. In this study, acute and subacute toxicity of aqueous extract of C. rubens leaves was evaluated in rats in order to assess its safety profile. In acute toxicity study, rats were given a single oral administration of aqueous extract of C. rubens leaves at graded doses (250mg/kg - 5000mg/kg). The animals were monitored for behavioural changes and possible mortality over a period of 24 h and thereafter, for 14 days. In the subacute toxicity study, rats of both sexes were administered C. rubens orally at doses of 250mg/kg, 500mg/kg, 750mg/kg and 1000mg/kg body weight daily, for 28 days...

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