Po Chai Pills were developed by Li Shiu Kei in Foshan, Guangdong in 1896. Following the Chinese Civil War, the Li family fled to Hong Kong and reestablished their company, Li Chung Shing Tong. However, their mainland property was nationalized. As a result there are now two manufacturers of Po Chai Pills:
*Li Chung Shing Tong Limited in Hong Kong; and
*Guangzhou Wanglaoji Pharmaceutical Company Limited in Guangzhou, China.
A mutual agreement between both parties has limited Wanglaoji's trademark rights to mainland China, while Li Chung Shing Tong has the rights to use the trademark in the rest of the world. The mainland manufacturer exports them from China as Curing Pills or Bao Ji Pills.
*Halloysitum I minera
*Rhizoma Atrach root
*Radix Puepariae root
*Herba Agastaches S leaves
*Excarpium Citri/tangerined red part
*Cortex magnoliae O. bark
*Masse Fermentata Neaven leave