hydrastine
  北美黃連鹼; 白毛茛鹼
  hy·dras·tine /haɪˈdræsˌtɪn, tən/ 名詞
  白毛茛鹼,北美黃連鹼
  Hy·dras·tine n. Chem. An alkaloid, found in the rootstock of the golden seal (Hydrastis Canadensis), and extracted as a bitter, white, crystalline substance. It is used as a tonic and febrifuge.
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