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: Lichen planus and acne provoked by gold.

Answer: adverse drug event


Question: The development of systemic lupus erythematosus (SLE) after 38 months of therapy with recombinant human interferon gamma (rIFN-gamma) was observed in a patient with rheumatoid arthritis.

Answer: adverse drug event


Question: We have successfully overcome severe neutropenia in an RA patient treated with gold salts, using granulocyte colony-stimulating factor (G-CSF), reducing the duration of neutropenia and risk of infection.

Answer:
adverse drug event