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.

Ex Input:
BACKGROUND: We describe the ophthalmic features and clinical course of two cases of acute syphilitic posterior placoid chorioretinitis (ASPPC) that developed after intravitreal triamcinolone acetonide (IVTA) injection.

Ex Output:
adverse drug event


Ex Input:
Scapular upward rotation is predominantly achieved via a force coupling involving the upper and lower trapezius and the serratus anterior.

Ex Output:
non-adverse drug event


Ex Input:
Histological examination of a skin biopsy was consistent with leucocytoclastic vasculitis.

Ex Output:

non-adverse drug event