It is not always chlorhexidine: Identification of benzoxonium chloride and lauramine oxide as culprit allergens in a popular antiseptic in Switzerland.
Contact Dermatitis
; 89(4): 284-289, 2023 Oct.
Article
em En
| MEDLINE
| ID: mdl-37286188
ABSTRACT
BACKGROUND:
A popular antiseptic spray in Switzerland (Merfen spray), containing chlorhexidine digluconate, benzoxonium chloride and lauramine oxide, is frequently used to treat skin wounds. However, it is also increasingly reported as a major cause of adverse skin reactions, including allergic contact dermatitis (ACD).OBJECTIVES:
To investigate the contact allergens responsible for ACD from this antiseptic. PATIENTS/METHODS:
Patch tests were performed on seven patients with a clinical history compatible with contact dermatitis from this antiseptic mixture.RESULTS:
All patients presented with acute eczematous reactions following contact with either Merfen spray alone, or with multiple products including this spray. Patients showed positive reactions to this product in both patch tests and repeated open application tests (ROATs). Four patients showed dose-dependent reactions to both benzoxonium chloride and lauramine oxide. One patient showed a dose-dependent reaction to the former and a non-dose-dependent reaction to the latter. Finally, two subjects showed responses only to lauramine oxide. One patient reacted to chlorhexidine digluconate 0.5% aq. in addition to both other allergens.CONCLUSIONS:
Two commercially unavailable allergens, that is, benzoxonium chloride and/or lauramine oxide were identified as major causes of ACD from Merfen antiseptic spray, whereas chlorhexidine digluconate was a contributing culprit in only one patient.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Dermatite Alérgica de Contato
/
Anti-Infecciosos Locais
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
Limite:
Humans
País/Região como assunto:
Europa
Idioma:
En
Revista:
Contact Dermatitis
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Suíça