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: We report a case of acne fulminans occurring during treatment with 13-cis-retinoic acid for cystic acne.

Answer: adverse drug event


Question: Several case reports of aplastic anemia with use of acetazolamide, and two cases with use of methazolamide, have appeared in the literature.

Answer: adverse drug event


Question: OBJECTIVE: To report a case of linear immunoglobulin (Ig) A bullous dermatosis (LABD) induced by gemcitabine.

Answer:
adverse drug event