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.

Fatal interstitial lung disease after erlotinib administration in a patient with radiation fibrosis.
adverse drug event

Quinine and its isomer quinidine are well-known causes of iatrogenic hypoglycaemia, due to excessive insulin secretion.
adverse drug event

BACKGROUND: Most of the new fillers used for soft tissue augmentation in aesthetic dermatology are considered well tolerated, but very little data are available on their long-term tolerability, especially in patients receiving immunomodulatory therapy.

non-adverse drug event