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:
A patient, while on intravenous ritodrine therapy for preterm labor, experienced an episode of acute chest pain.

Ex Output:
ritodrine


Ex Input:
After five and six weeks of continuous oral administration of methylprednisolone, the boys developed steroid diabetes.

Ex Output:
methylprednisolone


Ex Input:
In this article, we describe a Japanese patient with severe interstitial pneumonia probably caused by sorafenib treatment for metastatic renal cell carcinoma.

Ex Output:

sorafenib