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: Avascular necrosis of the femoral head in patients with prostate cancer treated with cyproterone acetate and radiotherapy.

Output: cyproterone acetate


Input: Consider Input: 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.

Output: risperidone


Input: Consider Input: Protamine-induced fatal anaphylaxis.


Output: Protamine