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.

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

Output: ketamine


Input: Consider Input: Spontaneous nasal septal perforation with antiangiogenic bevacizumab therapy.

Output: bevacizumab


Input: Consider Input: Progressive interstitial fibrosis with roentgenographic honeycombing developed in the case of a psoriatic patient who had been on a regimen of methotrexate for 18 years.


Output: methotrexate