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: CASES: "A" was an 8-year-old boy with attention deficit and chronic tic disorder who developed obsessive-compulsive symptoms within 2 weeks of starting risperidone.
Example Output: risperidone

Example Input: Two patients had ampicillin-associated seizures.
Example Output: ampicillin

Example Input: Delayed bowel injury is an infrequently observed complication of chromic phosphate administration.
Example Output:
chromic phosphate