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:
In this report and other reports describing successful resuscitation, the total dose of sodium bicarbonate is conspicuously higher than in reports describing extracorporeal interventions.

Ex Output:
non-adverse drug event


Ex Input:
Hepatitis following cimetidine administration.

Ex Output:
adverse drug event


Ex Input:
Reversible sclerotic changes of lumbar spine and femur due to long-term oral isotretinoin therapy.

Ex Output:

adverse drug event