A person taking excessive amounts of iodide may develop iodism.
Clinical features of iodism:
(1) burning mouth
(2) increased salivation
(3) metallic taste
(4) soreness of gums and teeth
(5) headache
Other toxicities:
(1) Long-term intake can result in an acneiform eruption (iododerma).
(2) High doses of iodide can trigger heart failure in a patient with underlying heart disease.
