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: In two patients clozapine was reinstated after risperidone was discontinued; serum triglyceride levels increased.
Example Output: clozapine

Example Input: Acute renal failure in a child associated with acyclovir.
Example Output: acyclovir

Example Input: Hepatotoxicity associated with use of D-penicillamine in rheumatoid arthritis.
Example Output:
D-penicillamine