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: A woman developed delusional parasitosis when taking phenelzine.

Output: adverse drug event


Input: Consider Input: Changes in serotonergic function may play a more widespread role in the pathophysiology of seizure disorders than hitherto thought.

Output: non-adverse drug event


Input: Consider Input: Retinopathy in hepatitis C patients due to combination therapy with pegylated interferon and ribavirin.


Output: adverse drug event