There are many kinds of Angong Niuhuang Pills, but nowadays they mostly refer to Angong Niuhuang Pills, which is a kind of Chinese medicine, mainly composed of Niuhuang, Musk, Pearl, Cinnabar, Huanglian, Scutellaria, Gardenia, etc. It has the effect of clearing heat and detoxifying, calming and opening the body, but not all people can use it, and the following four conditions should be prohibited: 1, pregnant women: Angong Niuhuang Pills contain ingredients such as Musk and Xionghuang, which have the effect of activating blood The use of this product is prohibited for pregnant women to avoid contraction of the uterus, which may cause danger to the fetus. 2. If taken for a long time or by patients with severe liver and kidney insufficiency, it can cause mercury poisoning; 3, the delirious: the drug has a cooling and sedative effect, so it can be used for delirium caused by heat, such as stroke, but not for patients with delirium caused by cold evil with a blue face and cold body, so as not to aggravate the symptoms; 4, cold limbs: for the appearance of numbness and swelling of the limbs, cold hands and feet, fear of cold, etc. Patients with symptoms are not recommended to use it because it has the effect of cooling the blood and detoxifying, clearing the heart and lowering agitation, which will increase the symptoms of coldness when taken by such patients. In addition, the use of drugs should be carried out under the guidance of a doctor. Patients with allergic reactions to any of the ingredients in this product should be prohibited to prevent aggravation of adverse reactions.