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.
--------
Question: Scans were performed without opioid drugs and 30 minutes after intramuscularly administered meperidine, morphine, hydroxyzine, hydroxyzine plus meperidine, butorphanol, and nalbuphine.

Answer: non-adverse drug event


Question: In 2 cats, rebound hyperglycemia was diagnosed on routine serial blood glucose determinations.

Answer: non-adverse drug event


Question: Arteriography demonstrated extensive pruning of the distal arterial tree along with bilateral external iliac artery dissections - a finding that is not often associated with young, normotensive patients with chronic ergot toxicity.

Answer:
non-adverse drug event