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: CONCLUSIONS: Although mirtazapine offers clinicians a combination of strong efficacy and good safety, we suggest bearing SS in mind when prescribing this drug, especially in frail, elderly patients with underlying chronic conditions.
Example Output: mirtazapine

Example Input: Of the four patients who responded to HU with an increase in total Hb, all reported symptomatic improvement and three have not required further transfusions.
Example Output: HU

Example Input: This case had radiation fibrosis, so we suggest that radiation fibrosis may be another contributor of the occurrence of ILD in patients taking erlotinib.
Example Output:
erlotinib