Eosinophilia-myalgia syndrome following administration of a L-tryptophan preparation
Frick, P.; Frey, R.
Schweizerische Medizinische Wochenschrift 120(44): 1633-1635
1990
ISSN/ISBN: 0036-7672 PMID: 2251478 Document Number: 364285
An unusual new syndrome of eosinophilia and myalgia linked with the ingestion of L-tryptophan has recently been recorded in the USA. Some of the cases were lethal. In this report we describe a severe case of eosinophilia-myalgia syndrome observed in a woman in Switzerland who fortunately recovered after one and a half years' duration. Thus far it is not clear if L-tryptophan or a contamination of the tryptophan is the cause of the syndrome.