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.

Post-steroid septic arthritis can be treated with irrigation pump assisted arthroscopic synovectomy.
non-adverse drug event

A case of acute cardiomyopathy and pericarditis associated with methylphenidate.
adverse drug event

Recently lamivudine has been reported to be effective in suppressing the replication of HBV under such conditions.

non-adverse drug event