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: Hyponatraemia developed after rechallenge with controlled release carbamazepine.
Example Output: carbamazepine

Example Input: Life-threatening hyperkalemia induced by arginine.
Example Output: arginine

Example Input: The second patient experienced mild nitritoid symptoms following several GSTM injections prior experiencing a cerebrovascular accident within several hours of her next injection.
Example Output:
GSTM