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.

Cefoxitin therapy for Mycobacterium fortuitum bacteremia with associated granulomatous hepatitis.
adverse drug event

Escape atrial complexes, which occurred following junctional premature complexes, failed to initiate tachycardia in the control state but tachycardia was always reinitiated by an identical escape sequence after procainamide.
adverse drug event

PURPOSE: We report a case of a patient who developed a postoperative anterior spinal artery syndrome that was masked by the use of epidural analgesia.

non-adverse drug event