Answers are grounded in this paper and cite their sources.
The activity of the crude extracts from eight medicinal plants used in Mexico to treat gastrointestinal infections were assayed against Entamoeba histolytica and Giardia lamblia axenic trophozoites. Alternanthera repens, Boerhavia coccinea, Flaveria trinervia, Leucaena esculenta, Tournefortia densiflora and Vitex mollis were found to have antiprotozoal activity, with extracts of Tournefortia densiflora being the most potent against both tested organisms.
No takes yet. Share an insight, caveat, or question.
Tapia-Pérez et al. (2003) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: