Po Chai Pills (traditional Chinese: 保濟丸; simplified Chinese: 保济丸; pinyin: bǎo jì wán) is a Traditional Chinese Medicine product made from several herbs formed into tiny spherical pills about 4 mm in diameter. It is used as a remedy for the relief of indigestion, heartburn, vomiting, diarrhea, and bloating. It can also be used as a hangover prevention remedy.Po Chai Pills were developed by Li Shiu Kei in Foshan, Guangdong in 1896.