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:
CONCLUSION: Squamous metaplasia in these cases appears to be a consequence of progestin therapy.

Ex Output:
progestin


Ex Input:
The frequency and relationship of granulocytopenia caused by sustained-release procainamide in patients with tachyarrhythmias are briefly discussed, and prior reported cases are reviewed.

Ex Output:
procainamide


Ex Input:
The abnormal rhythm disappeared with the withdrawal of propranolol and when the drug was restarted a 2/1 S-A block was seen.

Ex Output:

propranolol