instruction:
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.
question:
Premature closure of the ductus arteriosus: variable response among monozygotic twins after in utero exposure to indomethacin.
answer:
indomethacin


question:
We describe two cases of PSVT that changed to non-sustained polymorphic ventricular tachycardia after administration of verapamil.
answer:
verapamil


question:
An elderly man with procainamide hydrochloride-induced lupus syndrome had a circulating anticoagulant against factor XI and a biologic false-positive (BFP) test result for syphilis.
answer:

procainamide hydrochloride