Chanca Piedra is a small, upright, annual herb that grows 30 to 40 cm in height; it is indigenous to the rainforests of the Amazon and other tropical areas throughout the world, including the Bahamas, southern India, and China. P. niruri is quite prevalent in the Amazon and other wet rainforests, growing and spreading freely, much like a weed.

The Spanish name of the plant, chanca piedra, means “stone breaker”, it was named for its effective use to generations of Amazonian indigenous peoples in eliminating gallstones and kidney stones. In addition to kidney stones, the plant is employed in the Amazon for numerous other conditions by the indigenous peoples, including colic, diabetes, malaria, dysentery, fever, flu, tumors, jaundice, vaginitis, gonorrhea, and dyspepsia. Based on its long documented history of use in the region, the plant is generally employed to reduce pain, expel intestinal gas, to stimulate and promote digestion, to expel worms and as a mild laxative.

For the most part, it is employed for similar conditions worldwide. Its main uses are for many types of biliary and urinary conditions including kidney and gallbladder stones; for hepatitis, colds, flu, tuberculosis, and other viral infections; liver diseases and disorders including anaemia, jaundice and liver cancer; and for bacterial infections such as cystitis, prostatitis, venereal diseases and urinary tract infections. It is also widely employed for diabetes and hypertension as well as for its diuretic, pain-relieving, digestive stimulant, antispasmodic, fever reducing, and cellular protective properties in many other conditions.