Dutchmanspipe Fruit Classic Formulas

Primary Actions

Clears Lung heat and resolves heat-phlegm - Ma Dou Ling was classically used for cough, wheezing, rough breathing, and thick yellow sputum when excess heat is lodged in the Lungs.
Descends rebellious Lung Qi and stops cough - its bitter descending action made it a historical choice for dyspnea, labored breathing, and chronic cough patterns with heat or dryness.
Historically clears Large Intestine heat - older texts extend its use to hemorrhoidal swelling or bleeding on the theory that clearing Lung heat also helps resolve paired heat in the Large Intestine.

Bu Fei E Jiao Tang - the best-known classical formula association, where Ma Dou Ling clears residual heat while E Jiao nourishes Lung Yin.
Traditional Lung-heat cough pairings combined Ma Dou Ling with Sang Bai Pi, Huang Qin, and Xing Ren for phlegm-heat wheezing.
Dry heat or deficiency-heat cough traditions paired Ma Dou Ling with Mai Men Dong, Tian Hua Fen, Zhe Bei Mu, or E Jiao to moisten while clearing.

Older materia medica place Ma Dou Ling among Lung-heat cough herbs that are bitter, cold, and strongly descending.
Traditional teaching also links it to hemorrhoidal bleeding through the interior-exterior relationship of Lung and Large Intestine.
Modern reading of these classical uses must be tempered by the now well-established nephrotoxic and carcinogenic risk of aristolochic acids.