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.

Q: Symptoms mimicking Crohn's disease deteriorated under intensified immunosuppression and surgery.

A: non-adverse drug event
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Q: A 25-year-old man with a history of mid-borderline (BB) Hansen's disease developing a reversal reaction after starting dapsone and rifampin therapy is presented.

A: adverse drug event
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Q: Although this condition occurs primarily in severely myelosuppressed and immunosuppressed patients with leukemia, it may also occur in those with other advanced malignancies receiving myelosuppressive chemotherapy.

A:
non-adverse drug event
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