The current study is to develop the acute and sub-acute toxicity profile of some ayurvedic Bhasma and un-derstand the side effects due to the presence of heavy metals. Chandraprabha vati pill were weighed, powdery and suspended in water had made into liquid formulation. The animals were classified and treated with the doses of Chandraprabha vati (50and five hundred mg/kg) in rat. The dose was calculat-ed by extrapolating the equivalent human dose (1 and ten times) and was administered orally between ten and eleven after median daily for twenty eight days, during alylin a very volume not exceeding one ml/100 g rat weight. Blood was collected on seven, fourteen and twenty eight days, later they were sacri-ficed for histopathological studies.

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