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:
Pneumocystis carinii pneumonia as a complication of methotrexate treatment of asthma.

Ex Output:
methotrexate


Ex Input:
Acute ocular ischemic change may be associated with intravitreal injection of bevacizumab in patients with vascular compromised diabetic retinopathy and/or underlying stenosis of the carotid artery.

Ex Output:
bevacizumab


Ex Input:
We present a case of cutaneous leucocytoclastic vasculitis in which amphotericin B might presumably be the aetiological factor.

Ex Output:

amphotericin B