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.
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Question: It should be emphasized that the recurrence of nephrotic syndrome was observed after the following chemotherapy, including M-CSF, whereas the bone marrow still remained completely remitted.

Answer: adverse drug event


Question: The patient had a favourable outcome.

Answer: non-adverse drug event


Question: Clofazimine enteropathy caused by crystal deposition can be life-threatening.

Answer:
adverse drug event