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.

Transient asymptomatic bradycardia in patients on infusional 5-fluorouracil.
5-fluorouracil

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

We describe a heroin abuser in whom clinical and laboratory manifestations of acute hepatitis B and C appeared a few days after the insertion of a subcutaneous naltrexone implant.

naltrexone