Eosinophilia-Myalgia Syndrome

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Modified on 2009/10/14 21:37 by admin
Eosinophilia-myalgia syndrome (EMS) is characterized by an elevated eosinophil count (eosinophilia) combined with muscle pain, fatigue, tenderness, cough, rashes and neurologic problems. EMS first appeared in the early 1990s in people taking large amounts of L-tryptophan, an amino acid supplement often recommended by doctors to enhance sleep.

More than 1,500 cases of L-tryptophan-related EMS have been reported to the national Centers for Disease Control and Prevention. At least 38 patients are known to have died. The true incidence of L-tryptophan-related EMS is thought to be much higher. Some of the individuals suffering from L-tryptophan-related EMS have recovered, while other individuals' illnesses have persisted or worsened over time.

See Also

  1. Blood Disorders: Overview
  2. L-tryptophan
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