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.

Example Input: CONCLUSIONS: The pathogenesis of methotrexate-induced papular eruption in collagen vascular diseases may suggest cutaneous small-vessel vasculitis.
Example Output: methotrexate

Example Input: PURPOSE: To report patients who presented to the oculoplastics department for repair of cicatrical entropion after topical use of dipivefrin.
Example Output: dipivefrin

Example Input: Norethisterone in these 69 pregnancies accounted for 33.3% (5 of 15) cases of clitoral hypertrophy diagnosed in 100,756 consecutive births.
Example Output:
Norethisterone