Positive patch-test reactions to platinum are rare

Dermatitis. 2008 May-Jun;19(3):146-7.


Background: Although contact allergy to some metals is common, patch testing for allergy to platinum is rarely performed.

Objective: To determine the prevalence of positive patch-test reactions to platinum in an unselected consecutive group of patients presenting for diagnostic patch testing.

Methods: Unselected patients who presented with a possible diagnosis of contact dermatitis were tested with a series of allergens, including ammonium tetrachloroplatinate 0.25% aqueous.

Results: Of 446 patients tested, only 2 females showed positive reactions to platinum; one had no other positive reactions, and the other had reactions to other metals.

Conclusions: Positive patch-test reactions to platinum are rare. However, platinum jewelry may occasionally provoke allergic contact dermatitis.

MeSH terms

  • Chlorides / adverse effects*
  • Dermatitis, Allergic Contact / diagnosis
  • Dermatitis, Allergic Contact / epidemiology
  • Dermatitis, Allergic Contact / etiology*
  • Female
  • Humans
  • Manufactured Materials / adverse effects*
  • Patch Tests
  • Platinum / adverse effects*
  • Platinum Compounds / adverse effects*
  • Prevalence


  • Chlorides
  • Platinum Compounds
  • tetrachloroplatinate
  • Platinum