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.

[EX Q]: A cause-effect relationship to capecitabine was suggested due to resolution of headache with capecitabine withdrawal and reappearance with capecitabine rechallenge.
[EX A]: capecitabine

[EX Q]: METHODS: A case is presented of a 45-year-old woman on prolonged gemcitabine treatment for ovarian cancer who developed HUS and recovered after drug discontinuation.
[EX A]: gemcitabine

[EX Q]: Diarrhea-associated over-anticoagulation in a patient taking warfarin: therapeutic role of cholestyramine.
[EX A]:
warfarin