Adverse drug reactions are appreciably harmful or unpleasant reactions resulting from an intervention related to the use of medical products, which predicts hazard from future administration and warrants prevention or specific treatment, or alteration of the dosage regimen, or withdrawal of the product. Given medical case reports extracted from MEDLINE, the task is to classify whether the case report mentions the presence of any adverse drug reaction. Classify your answers into non-adverse drug event and adverse drug event.

PURPOSE: To describe bilateral optic neuritis that occurred as an adverse effect of recombinant and natural interferon alpha administration.
adverse drug event

Trichosporonosis appears to be an emerging fungal infection among immunocompromised individuals (including both hematological and solid organ transplant recipients).
non-adverse drug event

We present foreign body granulomas induced by activated charcoal from intraperitoneal chemotherapy and mimicked peritoneal metastases in the patients with gastric cancer.

non-adverse drug event