Concomitant Nitrofurantoin-Induced Autoimmune Hepatitis and Interstitial Lung Disease.

Antibiotics are known to cause adverse reactions, but multiple organ involvement associated with nonspecific symptoms can lead to a delay in diagnosis. A definitive correlation between each toxin and its effects is difficult to establish due to concomitant potential toxins in the circulation. This article highlights an uncommon case of concomitant nitrofurantoin-induced autoimmune hepatitis and lung fibrosis that fulfills the definitive clinical criteria for diagnosis, presenting histological, imagiological, and immunological evidence of nitrofurantoin-induced toxicity. It occurred in a 68-year-old woman with extended nitrofurantoin intake for urinary tract infection prophylaxis who presented with progressive exercise dyspnea and jaundice. Similar published cases are also reviewed in this article.