Background: Furazolidone is a nitrofuran antimicrobial agent used in the treatment of bacterial and protozoal infections. Hypersensitivity to furazolidone is rarely reported and only eight cases have been documented in English since 1967.
Objectives: To report a 24-year-old man who developed exanthematous drug eruptions in general and swelling sensation of the hands after first dose of oral administration of medicines for Helicobacter pylori infection 7 h later, who was finally confirmed with delayed-type IV allergic reaction to furazolidone by provocation tests. And to review the existing literature.
Methods: Thorough clinical examination, prick, intradermal, and patch tests, drug provocation tests were performed in the patient.
Results: Skin tests of all used drugs were negative. Drug provocation tests to furazolidone resulted to be positive.
Conclusions: Clinicians should be aware that furazolidone may induce delayed-type allergic reactions; diagnostic approaches should be taken to identify the responsible drug when multiple medications were used concurrently.
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