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

Answer: methotrexate


Question: In one case, the readministration of riluzole was followed by the relapse of hepatitis.

Answer: riluzole


Question: Motor fluctuations appear after 2-3 years of levodopa treatment, and affect at least 50% of patients after five years.

Answer:
levodopa