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A dose-dependent delayed hypersensitivity reaction to acetaminophen after repeated acetaminophen intoxicationsSlotervaart Hospital, Department of Pharmacy and Pharmacology, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands
Slotervaart Hospital, Department of Internal Medicine, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands
Slotervaart Hospital, Department of Internal Medicine, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands
Slotervaart Hospital, Department of Pharmacy and Pharmacology, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands
Slotervaart Hospital, Department of Pharmacy and Pharmacology, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands We report a case of a 29-year-old woman with a borderline personality disorder who presented with intentional substantial acetaminophen (paracetamol) overdosage on nine occasions during a period of 21 months. In most cases, the patient presented at the hospital within 4 h after ingestion and was treated with gastric lavage, activated charcoal, laxatives and intravenous N-acetylcysteine. During the sixth overdosage the patient developed a rash on her chest and shoulders which was considered an anaphylactoid reaction to N-acetylcysteine. Therefore she was treated with oral methionine subsequently, but developed the rash again. The rash was then ascribed to the repeated high-doses of acetaminophen and treatment with N-acetylcysteine was reinstituted. This case shows that when an anaphylactoid reaction occurs after an acetaminophen overdose and treatment with N-acetylcysteine, acetaminophen must also be taken into account as the cause of the anaphylactoid reaction before effective therapy with N-acetylcysteine is withheld.
Key Words: acetaminophen intoxication hypersensitivity
Human & Experimental Toxicology, Vol. 17, No. 7,
406-408 (1998) |
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