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.

Example Input: Here we present the case of a generalized lichen nitidus with involvement of the palms in a patient with hepatitis C after systemic treatment with interferon alpha and ribavirin.
Example Output: adverse drug event

Example Input: We also discuss the apparent increased thrombotic risk in patients receiving a VAD for chemotherapy induced cardiomyopathy and the implications this may have for the choice of VAD.
Example Output: non-adverse drug event

Example Input: The present report illustrates a rare case of refractory akathisia after interferon-alpha treatment and also that levodopa treatment would be theoretically and practically useful in reducing the neurotoxicity associated with interferon-alpha.
Example Output:
adverse drug event

