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: Acetic acid is corrosive and may cause vagina bleeding.
Example Output: Acetic acid

Example Input: Pancreatitis has been associated with the tetracycline class of antibiotics and concerns about tigecycline-induced acute pancreatitis have recently been raised.
Example Output: tigecycline

Example Input: Soon after its introduction in 1952, chlorpromazine was noted to induce symptoms resembling Parkinson's disease.
Example Output:
chlorpromazine