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.

Ex Input:
Both patients suddenly became hypotensive after injection of chymopapain into a disk.

Ex Output:
chymopapain


Ex Input:
We describe 3 elderly patients with moderate to severe ataxia that occurred while they were taking propafenone.

Ex Output:
propafenone


Ex Input:
This case and other published evidence should alert physicians to the possibility of fatal erlotinib-induced ILD.

Ex Output:

erlotinib