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.

[Q]: Three male patients aged 78-83 years are presented, in whom severe hepatotoxic reactions emerged after CPA administration.
[A]: CPA


[Q]: However, in order to avoid neuropathic side effects, patients under thalidomide therapy should be monitored every 6 months with nerve conduction studies while taking the drug.
[A]: thalidomide


[Q]: Our review of 194 RA patients and 38 PsA patients receiving MTX has identified four RA patients and one PsA patient with MTX-induced pneumonitis, giving a prevalence of 2.1% and 0.03%, respectively.
[A]:
MTX