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:
Possible mechanisms for damage to the urothelium by ketamine are suggested.

Ex Output:
ketamine


Ex Input:
Papillary necrosis associated with the HIV protease inhibitor indinavir.

Ex Output:
indinavir


Ex Input:
A patient suffering from a rare enzyme deficiency developed a malignant neuroleptic syndrome after having been treated with one single dose of haloperidol.

Ex Output:

haloperidol