What's more, Angong Niuhuang Pill contains toxic substances such as cinnabar and realgar. According to the Pharmacopoeia, the main component of cinnabar is mercury sulfide, and its content ratio is different, which is roughly 86.2% of mercury and 0/3.8% of sulfur/kloc-. Chinese patent medicines containing cinnabar should not be taken excessively or for a long time, especially those with abnormal liver and kidney function, so as not to cause mercury poisoning and aggravate the condition.
Therefore, Angong Niuhuang Pill should not be taken for a long time, that is, stop taking it after being conscious.