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: Infliximab-induced lupus in Crohn's disease: a case report.
Example Output: Infliximab

Example Input: The first case concerns a 70-year-old man who developed severe aplastic anemia 7 weeks after treatment with 500 mg of ticlopidine daily.
Example Output: ticlopidine

Example Input: Reversible sclerotic changes of lumbar spine and femur due to long-term oral isotretinoin therapy.
Example Output:
isotretinoin