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.

Example Input: Symptomatic hypocalcaemia and renal impairment associated with bisphosphonate treatment in patients with multiple myeloma.
Example Output: adverse drug event

Example Input: A 66 year old HIV infected male heavy smoker presented with arthralgia, myalgia, and weight loss which was originally ascribed to nucleoside induced mitochondrial toxicity.
Example Output: non-adverse drug event

Example Input: However, several case reports have suggested that clozapine could also cause TD.
Example Output:
adverse drug event