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: Patients from endemic areas referred to transplant centers may be at high risk for disseminated histoplasmosis when treated with long-term prednisone for graft-versus-host disease.
Example Output: prednisone

Example Input: We report the case of a child with metastatic osteosarcoma, who experienced an anaphylactic/anaphylactoid reaction to methotrexate.
Example Output: methotrexate

Example Input: A brief review of reported cases of chloramphenicol hypersensitivity in the English-language literature, as well as possible alternative explanations in this case, are provided.
Example Output:
chloramphenicol