Balloonflower Root — Classic Formulas
Jie Geng · Radix Platycodi
Primary Actions
- Opens and disseminates Lung Qi while transforming phlegm - used for cough, wheezing, chest oppression, and copious sputum in both wind-cold and wind-heat patterns that obstruct the Lung.
- Benefits the throat and restores the voice - classically chosen for sore throat, hoarseness, painful swallowing, and loss of voice when phlegm, wind-heat, or toxicity blocks the throat gate.
- Expels pus and opens the Lung - a key herb for Lung abscess, throat suppuration, and toxic phlegm-heat with chest pain, fever, foul sputum, or blood-streaked expectoration.
- Guides the actions of other herbs upward to the chest and throat - frequently included to lift clear Lung Qi, facilitate formula delivery to the upper burner, and support cases with prolapse or diarrhea when clear Yang fails to rise.
Classic Formulas
- Zhi Sou San (止嗽散) - from Yi Xue Xin Wu, where Jie Geng opens Lung Qi and helps stop lingering cough with phlegm after an external pathogen has not fully resolved.
- Yin Qiao San (银翘散) - from Wen Bing Tiao Bian, using Jie Geng to benefit the throat and ventilate the Lung in wind-heat sore throat, fever, and early febrile disease.
- Pu Ji Xiao Du Yin (普济消毒饮) - a classic toxin-clearing throat formula in which Jie Geng helps direct the action to the upper burner, relieving swollen painful throat and epidemic Heat-toxin presentations.
Classical Text References
- ALT-NAME NOTE: Sacred Lotus lists Bai Jie Geng as an alternate market name for the standard drug Jie Geng rather than as a distinct herb. The source XLSX imported the alternate name as the primary pinyin; this record corrects the main pinyin to Jie Geng while retaining the underlying slug.
- Shen Nong Ben Cao Jing and later materia medica traditions record Jie Geng for chest fullness, throat obstruction, and disorders where the Lung's diffusion and descent are impaired.
- Ben Cao Gang Mu and later formula traditions emphasize Jie Geng's special upward-guiding ability, explaining why it appears in both cough formulas and formulas that direct medicinals to the throat and chest.