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]: PURPOSE: We studied a case of vortex keratopathy that was associated with the use of atovaquone.
[EX A]: atovaquone

[EX Q]: Development of Crohn's disease in a patient with multiple sclerosis treated with copaxone.
[EX A]: copaxone

[EX Q]: After four months, while receiving RH, he developed painful bilateral gynaecomastia.
[EX A]:
RH