控涎丸 [－－－]

Jyutping hung3 jin4 jyun2
Pinyin kòng xián wán

Definitions (Wiktionary)
  1. noun
    A dark brown pill used in traditional Chinese medicine "to eliminate phlegm and retained fluid in the treatment of accumulation of phlegm in the chest marked by dull chest pain aggravated by cough and difficulty in expectoration".