Also, chronic exposure to rotenone and deguelin appears to increase the risk of Parkinson's disease, even in mammals, for which these compounds are less immediately toxic than for fish and insects.

[2] Deguelin might be useful in cancer therapy if it can be applied directly into tumors,[3] and Lonchocarpus root is used to a probably insignificant extent by indigenous peoples as an aid in fish stunning, e.g. by the Nukak who call it nuún.

It is still drunk today and was, after the Spanish conquest of Yucatán, considered a less harmful alternative to the alcoholic beverages imported by the Europeans.

The potency of balché may be increased by using honey produced from L. violaceus nectar foraged by the Maya people's traditional stingless bees.

They include a possible new Lepidopteran taxon in the two-barred flasher (Astraptes fulgerator) cryptic species complex which seems to have acquired this trait only quite recently in its evolutionary history and is known to be found on L. costaricensis and L.