Xiangsha Yangwei Wan (simplified Chinese: 香砂养胃丸; traditional Chinese: 香砂養胃丸) is a black pill with a dark brown core, and is used in Traditional Chinese medicine to "regulate the function of the stomach". It is slightly aromatic and tastes pungent and slightly bitter. It is used when there are symptoms of "anorexia, vomiting of acid fluid, epigastric distension and lassitude".
References
Xiangsha Yangwei Wan Wikipedia(Text) CC BY-SA