Dazhongyin Pills generally have to take how long is not fixed, need to be determined according to the patient’s condition, the shortest is one or two weeks, the longest is more than a month. The specific time to take the medicine should follow the doctor’s instructions. Dazhongyin Pills is a proprietary Chinese medicine, the main ingredients of which are tortoise shell, cypress, Zhimu, pig spinal cord, ripened rhizome and so on. It can nourish yin and reduce fire (nourish yin essence and reduce fire), and is effective in treating yin deficiency and fire (deficiency of yin essence in the body and hyperactive fire), hot flashes (a burst of heat), night sweating (abnormal sweating after going to sleep, but sweating stops after waking up), as well as irritability and anxiety. If the patient has Yin deficiency and fire (deficiency of Yin essence in the body and hyperactivity of deficiency fire), and the condition is more serious, take Da Tian Yin Wan, which usually needs to be taken for about 4 weeks. In the case of milder conditions, it may take about one week to take Dajian Yin Pills. However, the above dosage time is for reference only, the specific time should also be determined by a professional physician. It should be noted that Dahuanyin Pills should not be taken by people with colds and fever, and the adverse reactions and contraindications are not yet clear. It is best to take Dazhongyin Pills under the guidance of a traditional Chinese medicine practitioner, do not abuse the drug, so as not to damage the body.