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.

[Q]: Its treatment is mainly based upon discontinuation of heparin therapy.
[A]: non-adverse drug event


[Q]: The reaction subsided after treatment with diphenhydramine and dexamethasone.
[A]: non-adverse drug event


[Q]: Our patient developed both nephrogenic diabetes insipidus and renal tubular acidosis with a temporal pattern that demonstrated a link between foscarnet therapy and these abnormalities.
[A]:
adverse drug event