TASK DEFINITION: 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.
PROBLEM: Severe adenovirus pneumonia (AVP) following infliximab infusion for the treatment of Crohn's disease.

SOLUTION: adverse drug event

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

SOLUTION: adverse drug event

PROBLEM: In turn, it may cause inflammation in such rapidly dividing tissues as the corneal epithelium, conjunctiva, and tear duct.

SOLUTION:
non-adverse drug event