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: Four patients receiving high-dose tamoxifen for greater than 1 year have demonstrated similar retinal changes.
Example Output: tamoxifen

Example Input: This is the first report of a fluoxetine-related death in a child with a confirmed genetic polymorphism of the CYP2D6 gene that results in impaired drug metabolism.
Example Output: fluoxetine

Example Input: When the patient was treated again with fludarabine nine months later, the DAT became positive with anti-IgG and anti-C3d antiglobulins after the second course of treatment.
Example Output:
fludarabine

