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: Fulminant hepatitis and lymphocyte sensitization due to propylthiouracil.
Example Output: propylthiouracil

Example Input: The incidence of angioedema secondary to losartan, an angiotensin II receptor antagonist, is unknown.
Example Output: losartan

Example Input: Priapism as a complication of heparin therapy.
Example Output:
heparin