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:
Severe neurotoxicity with methyl G: CALGB experience.

Ex Output:
methyl G: CALGB


Ex Input:
Leishmania infantum leishmaniasis in corticosteroid--treated patients.

Ex Output:
corticosteroid


Ex Input:
Case 4: A 61-year-old male alcoholic who remained completely abstinent while taking cyanamide for 3 years showed slight elevation of serum transaminases.

Ex Output:

cyanamide