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: Pemphigus vulgaris precipitated by glibenclamide therapy.

Output: glibenclamide


Input: Consider Input: Despite the known pulmonary side effects of nitrofurantoin, there is no report of this toxicity occurring in pregnant patients.

Output: nitrofurantoin


Input: Consider Input: Presentation of three palliative care patients who were given ketamine as an analgesic and subsequently developed significant and debilitating urological symptoms.


Output: ketamine