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: A 78-year-old man with a transvenous cardioverter defibrillator system developed frequent shocks during oral procainamide therapy.
Example Output: procainamide

Example Input: CONCLUSIONS: Topical brimonidine may be associated with central nervous system depression in infants.
Example Output: brimonidine

Example Input: Scleritis complicating zoledronic acid infusion.
Example Output:
zoledronic acid