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: CONCLUSION: A 26-year-old man with bipolar disorder developed hyperammonemia three weeks after initiating carbamazepine therapy.
Example Output: carbamazepine

Example Input: We describe 3 elderly patients with moderate to severe ataxia that occurred while they were taking propafenone.
Example Output: propafenone

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