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: A 62-year-old Indian with diabetic nephropathy controlled with metformin, developed miliary tuberculosis for which he was treated with rifampicin, isoniazid and ethambutol.
Example Output: metformin

Example Input: Cimetidine-induced fever.
Example Output: Cimetidine

Example Input: Case report: life-threatening hypoglycaemia associated with sulfadoxine-pyrimethamine, a commonly used antimalarial drug.
Example Output:
sulfadoxine-pyrimethamine