There are about 120 plant-based drugs prescribed worldwide, and they come from just 95 plant species. Of the approximately 250 000 species of flowering plants, only 5000 have had their pharmaceutical potential assessed (Lewington, 1990).
There are about 120 plant-based drugs prescribed worldwide, and they come from just 95 plant species. Of the approximately 250 000 species of flowering plants, only 5000 have had their pharmaceutical potential assessed (Lewington, 1990).