hematotoxicity of leaf aqueous extract and its fractions.

, popularly known as 'assa-peixe', is widely used in Brazil for therapeutic purpose mainly to treat respiratory tract problems. However, few studies investigated its chemical safety. In this way, we first obtained the leaf aqueous extract (LAE) and three fractions (aqueous; n-butanol, n-BF; and ethyl acetate), and we chemically characterized this material.