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:
We describe a case of subcutaneous metastasis along the needle track after percutaneous ethanol injection (PEI) for treatment of hepatocellular carcinoma.

Ex Output:
ethanol


Ex Input:
We discuss a variety of bronchopulmonary complications of IBD and their association with sulfasalazine.

Ex Output:
sulfasalazine


Ex Input:
The mild immunosuppression that occurs with methotrexate therapy probably places patients with rheumatoid arthritis at added risk of developing lymphoproliferative diseases, but coincidence cannot be excluded.

Ex Output:

methotrexate