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.

Example Input: Dihydropyrimidine dehydrogenase deficiency: a pharmacogenetic defect causing severe adverse reactions to 5-fluorouracil-based chemotherapy.
Example Output: 5-fluorouracil

Example Input: CONCLUSION: Fixed drug eruption is associated with many drugs but this is the first such report with omeprazole.
Example Output: omeprazole

Example Input: A rare case of advanced ovarian carcinoma who developed difficulty walking 25 days after treatment with weekly paclitaxel.
Example Output:
paclitaxel