When to take Angong Niuhuang Pills has nothing to do with the season, only when there is heat into the pericardium (heat evil invades the pericardium) evidence, can be taken; if not, it can not be taken, the specific use of medication, please follow the doctor’s instructions. Angong Niuhuang Wan is mainly composed of yujin, pearl, gardenia, andrographis, ice, cinnabar, buffalo horn, yellow dock, artificial musk, oxalis, scutellaria and other drugs, the efficacy of which is to clear away heat and detoxify the toxin, wake up the spirit and open the orifices, and it can treat the symptoms of fainting, high fever, delirium (babbling), and fainting caused by the heat invading into the pericardium, as well as the symptoms of stroke coma and encephalitis, meningitis, and so on, which are seen in the above mentioned symptoms. The adverse reactions and contraindications of Angong Niuhuang Wan have not been clarified, note that pregnant women and athletes should be cautious. Angong Niu Huang Wan belongs to a kind of emergency medicine, can only be taken when there are corresponding indications, can not be taken as a health care product. The use of drugs need to be under the guidance of a professional physician to identify the evidence, if the body is not comfortable, it is recommended to consult a doctor in a timely manner.