Complementary and alternative remedies: an additional source of potential systemic nickel exposure.

BACKGROUND

Systemic contact dermatitis from nickel has been reported from a number of sources including medical devices and following experimental oral exposure.

OBJECTIVE

To identify other potential sources of systemic nickel exposure.

METHODS

The internet and published medical literature were searched for complementary and alternative remedies which contain nickel.

RESULTS

We identified and evaluated sources of nickel exposure in 4 homeopathic preparations, which are advertised to treat common skin diseases, as well as in a number of other homeopathic remedies, several herbal products and multivitamin mineral complexes.

CONCLUSION

Complementary and alternative remedies are an additional source of systemic nickel exposure and at highest doses the potential risk for systemic contact dermatitis in nickel allergic patients should be considered.