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 Input:
The photosensitivity is still present 3 years after the withdrawal of quinine.

Ex Output:
quinine


Ex Input:
In two patients clozapine was reinstated after risperidone was discontinued; serum triglyceride levels increased.

Ex Output:
clozapine


Ex Input:
CONCLUSION: Tamoxifen may cause malignant transformation of endometriosis through atypical endometriosis even in the postmenopausal state.

Ex Output:

Tamoxifen