Conclusion
The leaf extracts of Lantana camara and Chromolaena odorata
and whole plant extract of Euphorbia hirta exhibited cytotoxic
activity against the brine shrimp and considered as containing
active or potent components. This is because their LCso values
are less than 1000 ppm or ug/mL. The ethno-pharmacological
activities of these plant species are due to the different bioactive
compounds present in these plants. Although, BSLA is
inadequate in determining the mechanism of action of the
bioactive substances in the plant, it is very useful by providing a
preliminary screen that can be supported by a more specific
bioassay, once the active compound has been isolated. Thus,
some useful drugs of therapeutic importance may develop out of
the research work