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: Reversible valproic acid-induced dementia: a case report.
Example Output: valproic acid

Example Input: This report highlights a case of drug-induced dysphagia in a patient receiving haloperidol for obsessive nocturnal thoughts and auditory disturbances.
Example Output:
haloperidol