Peumus boldus MolinaThe use of boldo is passed down from the time of the Incas and the herb is used in much the same way today - for a wide range of stomach, digestive, and liver complaints. Boldo leaves are used to treat bladder and urinary tract infections, gallbladder discomfort, gallstones, heartburn and indigestion and stomach cramps. The herb works by encouraging the release of bile and dissolving fats and also by increasing intestinal transit time, giving the digestive tract more time to digest food. The ascaridole in boldo attacks intestinal worms. Not to be used by persons with gallstones, serious liver conditions or obstruction of the bile duct.