Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
A case is reported of a child with fatal pulmonary fibrosis following BCNU therapy.
Solution: adverse drug event
Reason: Here, the child is facing some trouble after undergoing a particular therapy, thereby causing an adverse effect of the therapy.

Now, solve this instance: Sensorineural hearing loss due to quinine therapy for malaria has frequently been mentioned in the literature but has not been a subject of research during the last decades.
Student:
adverse drug event