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.

Input: Consider Input: We present a case of accidental injection of tranexamic acid instead of bupivacaine during spinal anesthesia.

Output: non-adverse drug event


Input: Consider Input: Psoriasis-like skin reaction in a patient with rheumatoid arthritis after sulphasalazine therapy.

Output: adverse drug event


Input: Consider Input: Laboratory studies showed leukocyturia, thrombocytopenia, severe anemia, and tarry stools.


Output: non-adverse drug event