Administration: These ingredients are ground into powder. Each time 9g is decocted with proper amount of Zhuye (Herba Lophatheri) for oral administration.

Actions Removing heart fire and inducing diuresis.
Clinical Application: This recipe is applicable to intense heat syndrome in the heart meridian, manifested as irritability, feverish sensation in the chest, thirst, flushed face, preference for cold drinks, oral ulceration; or dark urine with difficulty and pain in urination, red tongue with thin yellowish fur, and rapid pulse. It can be used to deal with stomatitis, thrush, infantile night cry and infantile urinary infection, which pertain to domination of heat in the heart meridian. I

Elucidation The syndrome is result of flaming up of the heart-fire due to accumulation of heat in the heart meridian or heat in the heart invading the small intestine.
It should be treated by clearing away heat and fire from the heart and promoting diuresis. All the ingredients in combination achieve the effect of clearing away heat from the heart, promoting urination without impairing yin and nourishing yin without retaining pathogenic factors. Such symptoms as dysphoria, aphthae and painful urination will disappear when heat in the heart is induced downward and out through urination.

This prescription is forbidden to use to treat patients with exuberant heat not in the heart meridian or patients with renal insufficiency since Sanye Mutong (Radix clematidis Trifolium ) , Chu Mutong (Caulis Clematidis Armandii ) and Guan Mutong ( Caulis Aristolochiae Manshuriensis) are all used as drugs. But Guan Mutong contains aristolochine. Large dosage of preparation containing Guan Mutong (over 10 g daily) may damage the kidney. So this prescription should not be used for a longer period of time.
More information, please link to: http://net.zoosnet.net/LR/Chatpre.aspx?id=NET39826137
Source: http://www.tcmadvisory.com/