• Users Online: 1376
  • Print this page
  • Email this page
CASE REPORT
Year : 2014  |  Volume : 5  |  Issue : 6  |  Page : 113-115

Caffeine as a cause of urticaria-angioedema


Department of Clinical Medicine and Immunologic Science, Dermatologic Sciences Unit, University of Siena, Siena, Italy

Correspondence Address:
Dr. Linda Tognetti
Dermatology Unit, "Le Scotte" Hospital, AOUS, Viale Bracci 14, 53100 Siena
Italy
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2229-5178.146181

Rights and Permissions

We report the case of a young woman presenting with recurrent urticaria. The episodes occurred both in and out of the workplace. On three occasions it presented as urticaria-angioedema, requiring emergency care on one occassion. A thorough clinical history along with serological and allergological tests allowed a diagnosis of caffeine-induced urticaria-angioedema. We advised the patient to follow a caffeine-free diet and to avoid all caffeine or methylxanthine-containing drugs. After two years of caffeine abstinence, she had not experienced any further episodes of urticaria-angioedema. Only a few cases of caffeine-induced urticaria and/or anaphylaxis have been reported till date, with varying outcomes in allergologic investigations. Moreover, several cases are probably undiagnosed or misdiagnosed as idiopathic urticaria or as occupational allergy. We speculate that hypersensitivity to caffeine rather than autoimmine reaction may be the probable cause of urticaria. Caffeine should considered as a potential urticaria-inducing agent and should be included in the allergological test series.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed1020    
    Printed22    
    Emailed0    
    PDF Downloaded183    
    Comments [Add]    

Recommend this journal