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: Because of its favorable tolerability profile it appears to be a preferred alternative, especially in NSAID-sensitive patients.

A: non-adverse drug event
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Q: Although vasculitis has been reported in the course of hairy cell leukaemia, it has only rarely been reported as the consequence of cladribine treatment.

A: adverse drug event
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Q: It has also been seen in people with gastrointestinal diseases with malabsorption.

A:
non-adverse drug event
****