the impairment of circulation in the hypochondria and flanks due to the stasis of blood in turn causes the qi to stagnate. this combination of severe blood stasis and qi stagnation results in excruciating pain.

this is traumatic physical injury which results in blood leaving the vessels. the overflow of blood from the vessels remains localized and forms an internal obstruction which causes pain.

this prescription is primarily used in treating such pain in the chest, hypochondria, or flanks which are traversed by the liver and gall bladder channels. in addition, because the liver stores the blood, it should be treated irrespective of which channel is injured and causes blood stasis.