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.

[Q]: The authors postulate that two types of combined lithium-neuroleptic toxicity occur: a neuroleptic malignant extrapyramidal syndrome and a lithium toxicity that occurs in combination with phenothiazines, primarily thioridazine.
[A]: adverse drug event


[Q]: CONCLUSIONS: This is the second case report that describes gemcitabine-induced radiation recall in rectus abdominus muscles after gemcitabine-based radiation therapy.
[A]: adverse drug event


[Q]: Posterior reversible encephalopathy syndrome associated with methotrexate neurotoxicity: conventional magnetic resonance and diffusion-weighted imaging findings.
[A]:
adverse drug event