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:
The fluorine contained in niflumic acid induced a marked densification of trabecular bone in all 3 cases.

Ex Output:
niflumic acid


Ex Input:
Gestational diabetes was no less severe (degree of hyperglycaemia, need for insulin therapy) when associated with norethisterone.

Ex Output:
norethisterone


Ex Input:
Three patients received respectively 190 mg, 175 mg, and 196 mg of methotrexate and developed bilateral pulmonary infiltrates without evidence of peripheral blood eosinophilia.

Ex Output:

methotrexate