What is the most useful medicine for yin and yang deficiency

Patients with deficiency of yin and yang can be treated with medicines such as Di Huang Drinking Seed and Ginseng Deer Fu Zheng Tablet under the guidance of physicians, but there is no most useful medicine.
1. Dihuang Drink: It is composed of ripened dihuang, cornelian cherry, dendrobium, epiphyllum and other medicines, which has the effect of nourishing kidney yin, tonifying kidney yang, opening the orifices and resolving phlegm. It can be used to treat symptoms such as red face, cold feet, dry mouth, and weak and sunken pulse caused by deficiency of the lower element and phlegm overflow. This product is not suitable for those who are suffering from hyperactivity of liver yang and obvious signs of yang-heat.
2. Ginseng and Deer Fuzheng Tablet: It is composed of ginseng, Radix Rehmanniae Praeparata, Cortex Eucommiae, Fructus Lycii and other medicines, which has the effect of strengthening the root of the body, nourishing the yin and strengthening the yang. It can be used to treat symptoms such as dizziness, weakness, tinnitus, lumbar and knee pain caused by deficiency of yin and yang. Attention to allergy to this product is prohibited, children, pregnant women are prohibited, cold and fever patients should not take, hypertension and other chronic diseases should be taken under the guidance of a physician.
Patients who need medication should consult a traditional Chinese medicine practitioner, do not take medication without authorization.