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.

Example Input: Scleroderma in association with the use of bleomycin: a report of 3 cases.
Example Output: bleomycin

Example Input: Careful follow-up of so-called "self-limited" insulin edema is encouraged, and the early institution of diuretic therapy is advocated in elderly patients to prevent the development of overt cardiac failure.
Example Output: insulin

Example Input: A 52 year-old male patient diagnosed of ankylosing spondylitis presented with an iron deficiency anemia after a ten-month treatment of methotrexate.
Example Output:
methotrexate