Abstract

BERENGUER RIVAS, Clara Azalea et al. Acute oral toxicity of Azadirachta indica (Neem Tree). Rev Cubana Plant Med [online]. 2013, vol.18, n.3, pp. 502-507. ISSN 1028-4796.

Introduction: Neem tree, whose scientific name is Azadirachta indica, is a medicinal plant used by its antiseptic, antiviral, antipyretic, antimicrobial, and anti-inflammatory properties, among others. No acute toxicity studies are reported on this plant, just long-term toxicity studies. Objectives: to evaluate the acute oral toxicity by the class method using decoction of Azadirachta indica leaves and stems orally administered to Sprague Dawley rats. Methods: an acute oral toxicity test based on the class method was conducted. The Azadirachta indica plant decoction was administered in one dose of 2 000 mg/kg of body weight. Pathological anatomy studies were performed to analyze the toxicity in the tested substance. Results: the evaluated substance did not show any clinical signs of toxicity or animal deaths; no alterations in the body weight of the experimental models were found. There were no alterations of diagnostic value according to the macroscopic analysis. Conclusions: the tested decoction, orally administered at one dose, is regarded as unclassified for the animal model and the dosage used under the observed experimental conditions.

Keywords : medicinal plants; acute toxicity; toxicity test; Azadirachta indica.

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