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.

Q: Four patients receiving high-dose tamoxifen for greater than 1 year have demonstrated similar retinal changes.

A: tamoxifen
****
Q: Based on the clinical status of the patient, it was suspected that several conditions contributed to the abnormal hypersensitivity to warfarin.

A: warfarin
****
Q: Management of hypophosphatemia induced by high-flux hemodiafiltration for the treatment of vancomycin toxicity: intravenous phosphorus therapy versus use of a phosphorus-enriched dialysate.

A:
vancomycin
****