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.
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Question: CONCLUSION: Long-term treatment with rifabutin may have a reversible and previously undescribed side-effect on retinal function.

Answer: rifabutin


Question: BACKGROUND: Headaches have been reported as a potential side effect of capecitabine therapy.

Answer: capecitabine


Question: Severe Raynaud's phenomenon with yohimbine therapy for erectile dysfunction.

Answer:
yohimbine