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.

No explanation for this delay was found, other than the possibility that magnesium sulfate treatment impeded lactogenesis.
adverse drug event

PURPOSE: To describe bilateral optic neuritis that occurred as an adverse effect of recombinant and natural interferon alpha administration.
adverse drug event

Although moderate myelosuppression is not uncommonly seen in patients treated with lenalidomide, aplastic anemia has not previously been reported to be associated with this agent.

adverse drug event