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:
MATERIALS AND METHODS: We present two cases of significant morbidity related to primary and secondary perforation of the bladder following two instillations of epirubicin.

Ex Output:
epirubicin


Ex Input:
Isoniazid inhibits the conversion of tryptophan to niacin and may induce pellagra, particularly in poorly nourished patients.

Ex Output:
Isoniazid


Ex Input:
Isoniazid-induced anaphylaxis.

Ex Output:

Isoniazid