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.

Ex Input:
Carbamazepine induced right bundle branch block in a Greenlandic patient.

Ex Output:
adverse drug event


Ex Input:
The reaction subsided after treatment with diphenhydramine and dexamethasone.

Ex Output:
non-adverse drug event


Ex Input:
Acute aluminum toxicity after continuous intravesical alum irrigation for hemorrhagic cystitis.

Ex Output:

adverse drug event