Anaphylaxis caused by pipemidic acid.
D000707:Anaphylaxis / Q000139:chemically induced*; D006801:Humans; D008297:Male; D009539:Nicotinic Acids / Q000009:adverse effects*; D010876:Pipemidic Acid / Q000009:adverse effects*
D009539:Nicotinic Acids; D010876:Pipemidic Acid