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: An unusual presentation of spontaneous sub-conjunctival haematoma in a patient receiving warfarin.
Example Output: warfarin

Example Input: Reversible cardiomyopathy caused by administration of interferon alpha.
Example Output: interferon alpha

Example Input: Typically, drug-induced neutropenia occurs in a patient receiving a semisynthetic penicillin for two weeks or more.
Example Output:
penicillin