title: Prevention of anaphylaxis from contrast media.
mesh_terms: D000707:Anaphylaxis / Q000209:etiology / Q000517:prevention & control*; D003287:Contrast Media / Q000009:adverse effects*; D004155:Diphenhydramine / Q000008:administration & dosage; D006801:Humans; D008297:Male; D008775:Methylprednisolone / Q000008:administration & dosage; D008875:Middle Aged; D011292:Premedication
chemical_list: D003287:Contrast Media; D004155:Diphenhydramine; D008775:Methylprednisolone