Taking silver could give you the blues. Silver is less toxic than some other metals...but do you look good in blue?
D000900:Anti-Bacterial Agents / Q000009:adverse effects; D001129:Argyria / Q000209:etiology*; D003102:Colloids / Q000009:adverse effects; D006801:Humans; D018030:Silver Compounds / Q000009:adverse effects*
D000900:Anti-Bacterial Agents; D003102:Colloids; D018030:Silver Compounds