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.

Example Input: Indolent aspergillus arthritis complicating fludarabine-based non-myeloablative stem cell transplantation.
Example Output: fludarabine

Example Input: OBJECTIVE: To report a patient developing fulminant liver failure while being treated with clarithromycin for pneumonia.
Example Output: clarithromycin

Example Input: Prior neurologic illness and the syndrome of irreversible lithium-effectuated neurotoxicity (SILENT).
Example Output:
lithium