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: We report 3 children with epilepsy who developed facial motor tics after initiation of CBZ for complex partial seizures.

A: adverse drug event
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Q: Ibuprofen-induced meningitis: detection of intrathecal IgG synthesis and immune complexes.

A: adverse drug event
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Q: Acute erythroid leukemia after cyclophosphamide therapy for multiple myeloma: report of two cases.

A:
adverse drug event
****