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Text File  |  1992-09-02  |  277b  |  8 lines
  1. An alkaloid C33H35O5N5 administered to treat
  2. migraine and to induce childbirth. Isolated
  3. from ergot, a fungus that colonizes rye, it
  4. relieves symptoms by causing the cranial
  5. arteries to constrict. Its use is limited by
  6. severe side effects, including nausea and
  7. abdominal pain.
  8.