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: We present the case of a postictal patient with lethargy, hyperammonemia, otherwise normal liver function tests, and a therapeutic valproic acid level.

A: adverse drug event
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Q: Drug eruption caused by azathioprine: value of using the drug-induced lymphocytes stimulation test for diagnosis.

A: adverse drug event
****
Q: Two ajmaline tests were both negative and ruled out the diagnosis of BS.

A:
non-adverse drug event
****