Sensitization to Kathon CG in Switzerland: Report of the Swiss Contact Dermatitis Research Group

  • N. Hunziker
  • F. Pasche
  • L. Bruckner-Tuderman
  • D. Perrenoud
  • R. Rufli
  • A. Bircher
  • H. Suter
  • W. Thürliman


In 1987, the rate of sensitization to Kathon CG in the six main Swiss Dermatology Clinics was 3.5% (87 positive reactions in 2491 patients). In 1005 tested men, 30 positive reactions were observed (3%), and in 1486 tested women, 57 positive reactions (3.8%). In about one-third of our patients, relevance could be confirmed clinically by the disappearance of dermatitis when the use of Kathon-containing creams was discontinued, by a positive patch test reaction with the Kathon-containing cosmetic, or (in Geneva) by threshold patch testing.

Key words

Kathon CG Isothiazolinones Preservative Patch test Cosmetics 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • N. Hunziker
    • 1
  • F. Pasche
    • 1
  • L. Bruckner-Tuderman
    • 2
  • D. Perrenoud
    • 3
  • R. Rufli
    • 4
  • A. Bircher
    • 4
  • H. Suter
    • 5
  • W. Thürliman
    • 6
  1. 1.Clinique de DermatologieHôpital Cantonal UniversitaireGeneva 4Switzerland
  2. 2.Dermatologische KlinikUniversitätsspitalZürichSwitzerland
  3. 3.Policlinique de DermatologieCHUVLausanneSwitzerland
  4. 4.KantonsspitalDermatologische UniversitätsklinikBaselSwitzerland
  5. 5.InselspitalDermatologische UniversitätsklinikBernSwitzerland
  6. 6.Dermatologische StadtpoliklinikZürichSwitzerland

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