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.

Input: Consider Input: Anticoagulant therapy was initiated with subcutaneous enoxaparin and oral warfarin.

Output: non-adverse drug event


Input: Consider Input: To the best of our knowledge, this is the first reported patient with captopril-induced pemphigus in whom no new lesions developed after subsequent treatment with enalapril.

Output: adverse drug event


Input: Consider Input: Symptomatic air trapped in the spine after lumbar epidural corticosteroid injection.


Output: non-adverse drug event