Angioneurotic oedema secondary to oral thiamine.

BMJ case reports

PubMedID: 24051148

Osman M, Casey P. Angioneurotic oedema secondary to oral thiamine. BMJ Case Rep. 2013;2013.
Although allergic side effects due to parenteral thiamine are well-documented, they are extremely rare when thiamine is used orally. We report a case of a 47-year-old woman who developed angioneurotic oedema secondary to oral ingestion of thiamine at a therapeutic dose. The incident occurred twice with a clear temporal relationship to the initiation on thiamine.