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.

We describe a case of subcutaneous metastasis along the needle track after percutaneous ethanol injection (PEI) for treatment of hepatocellular carcinoma.
ethanol

CASES: "A" was an 8-year-old boy with attention deficit and chronic tic disorder who developed obsessive-compulsive symptoms within 2 weeks of starting risperidone.
risperidone

Anterior ischemic optic neuropathy secondary to interferon alfa.

interferon alfa

