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Contact Hypersensitivity to Selected Adjuvant Substances in DermatologicalTopical Preparations and Cosmetics in Patients with Chronic Eczema


Authors: E. Dastychová;  M. Nečas;  K. Pěnčíková
Authors‘ workplace: I. dermatovenerologická klinika LF MU a FN U sv. Anny v Brně přednostka prof. MUDr. Věra Semrádová, CSc.
Published in: Čes-slov Derm, , 2004, No. 3, p. 95-102
Category:

Overview

From April 2001 to September 2003, 900 patients with chronic eczema (289 men, 611 women,average age 43.6 years) were evaluated by patch tests for contact hypersensitivity to selectedadjuvant substances in dermatological topical remedies and cosmetics. Atopic eczema was diagnosedin 337 of patients. From antimicrobials used as conservants the most common allergen was thiomersalin 12.4%, then phenylhydrargyrumacetate in 5.4%, formaldehyde and dibromiumdicyanobutane/phenoxyethanol (Euxyl K 400) in 2.5%, bronopol in 2.2%, chloracetamide in 2.1%, chlorhexidine in2.0%, Kathon CG in 1.9%, diazolidinylurea in 1.8%, paraben and imidazolidinylurea in 1.6%, glutaraldehydein 0.9%, Quarternium-15 in 0.7%, dichlorophen in 0.6%, triclosan in 0.5%, DMDM-hydantionand chlorocresol in 0.4%, phenoxyethanol in 0.3%, benzalconiumchloride, chloroquinaldol andascorbic acid in 0.2% of patients, from antioxidants there were dodecylgallate in 1.7%, butylhydroxyanisolein 0.8%, propylgallate in 0.6%, butylhydroxytoluen in 0.2% of patients and from anothersubstances there were alcoholes adipis lanae in 5.3%, trolamine in 1.0% and propylenglycole in 0.3%of patients. Sources of sensibilisation were pharmaceutical products in 44.7%, cosmetics in 31.2%,industry in 7.8%health care in 2.2%, source remained unindetified in 13.3%.Clinical relevance was 32.5%. Complete information about composition of pharmaceutical products and cosmetics in packageleaflets seems fundamental, especially for patients with eczema. Results of this study can serve asa feed-back information for producers of both, pharmaceuticals and cosmetics.

Key words:
contact hypersensitivity - dermatological topical products - cosmetics - adjuvants -conservants - antioxidants

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Dermatology & STDs Paediatric dermatology & STDs
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