Low blood pressure in the elderly usually does not require medication if it occurs in a physiologic state. However, if it is caused by heart failure, infectious diseases and other diseases, then it needs to be treated with diuretics, coronary expansion drugs, cardiotonic agents, antibiotics and other drugs according to the cause of the disease, which are summarized as follows. 1. Physiological state If low blood pressure occurs under physiological conditions such as lack of water or insufficient fluid supplementation, it can be treated with supplemental soup or saline to increase the blood pressure, and no special medication is needed. When metabolic rate slows down during deep sleep, resulting in low blood pressure, this situation will not cause discomfort and does not require special treatment. 2. Low blood pressure caused by pathologic factors and the use of medication Heart failure: if the old age hypotension is caused by heart failure, then we need to use diuretics such as furosemide and spironolactone to reduce the cardiac load, use nitroglycerin and other coronary drugs to improve myocardial blood supply, and use Astragalosa Drabanemerosa hebecarpa cardiac capsule or digoxin to increase myocardial contractility. Infectious diseases: if the elderly hypotension is due to severe pneumonia, severe urinary tract infections and other infectious diseases, then you need to adequately rehydration at the same time, give strong antibiotics such as imipenem, and with the use of norepinephrine and other vasoactive drugs to raise blood pressure. Drugs are not suitable in this case because of the severity of the condition and the slow onset of oral medications, which are usually administered intravenously. Hypothyroidism: If the low blood pressure in the elderly is caused by hypothyroidism, which is a metabolic rate slowing down disease, then eat levothyroxine and other drugs to correct the thyroid function, the thyroid function is restored, and the blood pressure will recover naturally. In conclusion, low blood pressure in the elderly needs to be diagnosed and treated under the guidance of a professional doctor.