has been used in central-west region of Argentina in traditional medicine as diuretic plant. The aim of this present study was to evaluate the diuretic activity of in-vivo. We used dried aerial parts, and infusions from these were orally administered to Wistar rats. Its effect was evaluated using furosemide as a positive drug and isotonic salt solution as negative control. Their urine output was quantified at several time intervals. The volume of urine excreted and Na increased significantly, being similar to furosemide. Mannitol, was the main component in aqueous extracts of and the acetone extract showed the presence of Δ- oleanane-type triterpenoids compounds, mainly hederagenin. No toxic effects were observed.
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