Muscle spasm associated with therapeutic use of Cang Er Zi Wan

  title={Muscle spasm associated with therapeutic use of Cang Er Zi Wan},
  author={Patrick L. West and Nathanael J. Mckeown and Robert G Hendrickson},
  journal={Clinical Toxicology},
  pages={380 - 384}
Introduction. Cang Er Zi Wan (CEZW) is a herbal medication derived from Xanthium sibiricum that is used to treat allergies and upper respiratory problems. Its toxicity has been described in grazing animals, in experimental studies, and in human overdoses. We describe a case of muscular spasm that was associated with the therapeutic use of CEZW. Case report. A 17-year-old female was prescribed CEZW for chronic allergies. Shortly after her second dose of 10 pills BID, she developed intermittent… 

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