Pseudoporphyria due to naproxen.
D006801:Humans; D008297:Male; D008875:Middle Aged; D009288:Naproxen / Q000009:adverse effects*; D011164:Porphyrias / Q000139:chemically induced*; D012871:Skin Diseases / Q000139:chemically induced*
D009288:Naproxen