Ferrous iron and porphyria cutanea tarda.
D005260:Female; D006801:Humans; D006886:Hydroxychloroquine / Q000627:therapeutic use; D007501:Iron / Q000009:adverse effects* / Q000652:urine; D008875:Middle Aged; D011164:Porphyrias / Q000139:chemically induced* / Q000188:drug therapy / Q000652:urine
D006886:Hydroxychloroquine; D007501:Iron