Angong Niuhuang Pill is a first-aid medicine, used for high fever convulsions, stroke coma and encephalitis, toxic encephalopathy, cerebral hemorrhage, septicemia and other symptoms, the best time to take it is within 3 hours of the onset of the disease. The onset of action time of Angong Niuhuang Pill varies from person to person, for hypertensive crisis the onset of action time is about 10-30 seconds, after the stroke use within 3 hours of application although not immediately effective, but can win the rescue time, reduce or alleviate the sequelae of stroke and the rate of death. For those who are in a feverish coma, if the fever does not subside within 12 hours of taking this medicine, you can consult your doctor to increase the dose. Usually, it is better to take Angong Niuhuang Pill within half an hour to two hours after meals, but if the condition is acute, it can be taken at any time. In addition, it is advisable to eat a light diet during the period of taking the medicine, avoiding spicy and stimulating food to avoid fire and phlegm.