The formulae generally refer to those recorded in the Treatise on Typhoid Fever and the Essentials of the Golden Chamber, and there are no formulas specifically designed to regulate the deficiency of yin and yang. Formulas to regulate kidney yin and yang deficiencies include Gui De Er Xian Gum and Di Huang Drink, etc., which should be taken correctly under the guidance of a doctor by selecting the appropriate formula.
1. Tortoise and Deer Erxian Gum: This formula is a pure tonic formula composed of tortoise board, deer horn, wolfberry and ginseng, which can strengthen yang and benefit qi, and also nourish yin and fill up essence. This formula is suitable for the deficiency of yin, yang, essence and blood caused by thinness, lumbar and knee weakness, dizziness, impotence, spermatorrhea or infertility.
2. Di Huang Drink: This formula consists of Radix Rehmanniae Praeparata, Cornu Cervi Pantotrichum, Radix Morinda Citri Reticulatae, Herba Cistanches, Dendrobium, Maitake, Fructus Schisandrae Chinensis, Rhizoma Cinnamomum, Radix Pseudostemonis Macrocephala, Radix Polygonati Odorati, Radix Polygonati Poriae, Mentha Armeniacae, Ginger, Jujubae and so on.
It can nourish kidney yin and tonify kidney yang, as well as dissolve phlegm and open the orifices (opening the orifices of the heart and restoring the spirit by removing phlegm). It is suitable for the symptoms caused by deficiency of kidney yin and yang, such as tongue straightness and difficulty in speech, weakness of the feet and difficulty in walking, dryness of the mouth and inability to drink, and coldness of the feet with redness of the face.