Clear heat and reduce fever
 
With 11 key ingredients, these pills have a long history, with recorded uses during China's ancient Qing Dynasty and Wai Yuen Tong's recipe, in terms of ingredients and dosage, completely follows the recipe in the Pharmacopoeia of the People's Republic of China.  
 
In Chinese medicine-based therapeutics, Angong Niuhuang pill (ANP) is one of the three most effective formulas for febrile diseases, and it is also used to treat other diseases. This paper reviews current knowledge regarding the clinical and pharmacological effects of ANP for treating different central nervous system (CNS) diseases to confirm its validity and efficacy. These diseases are like centric fever, coma, stroke, and viral encephalitis.