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.
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Question: Three days after intravitreal injection of bevacizumab, acute ocular ischemic syndrome occurred.

Answer: adverse drug event


Question: It has been reported that fluoroquinolone antimicrobials prolong the corrected QT interval but rarely cause torsade de pointes.

Answer: adverse drug event


Question: INTRODUCTION: Chronic constipation is a common symptom in pediatrics, and physicians often use mineral oil to treat chronic constipation in children.

Answer:
non-adverse drug event