The correct name of Di Huang Drink is Di Huang Drink, and the term “plus or minus” refers to the doctor’s discretion to increase or decrease the medication according to the patient’s condition. It can be used to treat patients with advanced hypertension who suffer from deficiency of kidney yin and yang. Dihuang Drink consists of Dendrobium, Radix Rehmanniae Praeparata, Herba Cistanches and Rhizoma Gastrodiae. This formula has the effects of tonifying kidney yang, nourishing kidney yin, resolving phlegm and opening the orifices (opening the orifices of the heart and restoring the spirit by removing phlegm), and is used for treating micturition with phlegm and turbidity upward, which is characterized by a strong tongue unable to speak, feet unable to be used, a dry mouth that does not want to drink, and feet that are cold with a face that is red. This formula is often used in modern clinics for the treatment of advanced hypertension, post-stroke, cerebral arteriosclerosis, senile dementia, spondylitis, etc. belonging to the deficiency of kidney yin and yang. The adverse reactions and contraindications of this drug are still unclear, if you have the need for medication, it is recommended to go to the hospital under the guidance of a doctor to identify the symptoms of the drug, do not self-medication.