In this task, you will be given sentences in which your task is to recognize the name of the drug or medicine. Drugs are substances that change a person's mental or physical state. They can affect how your brain works, how you feel and behave, your understanding, and your senses. Although there might be several correct answers, you need to write one of them.
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Question: We describe 3 elderly patients with moderate to severe ataxia that occurred while they were taking propafenone.

Answer: propafenone


Question: Cryptococcus neoformans fatal sepsis in a chronic lymphocytic leukemia patient treated with alemtuzumab: case report and review of the literature.

Answer: alemtuzumab


Question: Other upper tract neoplasms after cyclophosphamide are reviewed.

Answer:
cyclophosphamide