1. Six Flavor Rehmannia Soup-like Formulas

1. Six Flavor Rehmannia Soup-like Formulas

Six Flavor Rehmannia Soup, also known as Six Flavor Rehmannia Pill, originates from "Direct Explanation of Pediatric Medicines." This formula can be taken as a decoction or made into pills with honey, hence the dual names of soup and pill. It consists of Shudi (or Shudi cooked), Shanyu, Shanyao, Danpi, Fuling, and Ze Xie, serving as the representative formula for nourishing kidney yin. Symptoms treated include dizziness, blurred vision, tinnitus, lower back pain, leg fatigue, bone-steaming heat, five-heart restlessness, and night sweats. Modern medicine believes that most of the indications for this formula are related to the function of the hypothalamus-pituitary-adrenal cortex axis, while also enhancing the body's immune function. Clinically, it can be used to treat leukemia, esophageal cancer, hypertension, diabetes, glaucoma, chronic nephritis, chronic hepatitis, systemic lupus erythematosus, emphysema, pulmonary heart disease, menstrual irregularities in women, and other conditions through modifications and adaptations. If Six Flavor Rehmannia Soup is combined with Zhimu and Huangbo, the resulting formula is called Zhi

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Bai Di Huang Tang (from "Yi Zong Jin Jian"), treats yin deficiency with excessive fire and internal heat. Liu Wei Di Huang Tang is modified with goji berries and chrysanthemum to form Qi Ju Di Huang Tang (from "Yi Ji"), which treats liver and kidney yin deficiency accompanied by blurred vision and eye pain. Liu Wei Di Huang Tang is further modified with schisandra to form Du Qi Wan (from "Yi Zong Ji Ren Bian"), used for kidney qi failing to contain qi, resulting in breathing difficulties. Liu Wei Di Huang Tang is combined with ophiopogon and schisandra to form Ba Xian Chang Shou Wan (from "Yi Ji"), indicated for lung and kidney yin deficiency with frequent coughing and wheezing. Liu Wei Di Huang Tang is adjusted by removing danpi and adding goji berries and honey-fried licorice to form Zuo Gui Yin (from "Jing Yue Quan Shu"), used for kidney water deficiency and yin fluid depletion, presenting symptoms such as lower back pain, nocturnal emission, dry mouth, night sweats, and intense thirst.