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:
Venlafaxine-induced urinary incontinence resolved after switching to sertraline.

Ex Output:
Venlafaxine


Ex Input:
Acute reversible ataxo-myoclonic encephalopathy with flecainide therapy.

Ex Output:
flecainide


Ex Input:
Methotrexate-induced leukoencephalopathy is treatable with high-dose folinic acid: a case report and analysis of the literature.

Ex Output:

Methotrexate