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: Hepatitis with bridging fibrosis and reversible hepatic insufficiency in a woman with rheumatoid arthritis taking methotrexate.

SOLUTION: adverse drug event

PROBLEM: Their criticisms also differed from a third criticism contained in the article as well as the protocol being advocated in the article, thus contravening the claim that there is one prescribed protocol which must be followed.

SOLUTION: non-adverse drug event

PROBLEM: Primary CNS lymphoma regressed on withdrawal of MM.

SOLUTION:
adverse drug event