píng wèi sǎn • calm the stomach powder • 平胃散 fragrantly resolve dampness cāng zhú is used for patterns with dampness, all kinds of bi syndrome, dampness obstructing the middle jiao, wind-dampness, wind-cold, summer-heat. symptoms indicating the use of cāng zhú anorexia, diarrhea, epigastric distention and pressure, fatigue, nausea and vomiting, fever, headache, body aches, nasal…