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: Pediatric heparin-induced thrombocytopenia: management with Danaparoid (orgaran).
Example Output: heparin

Example Input: A case of the Rett syndrome with acute encephalopathy induced during calcium hopantenate treatment.
Example Output: calcium hopantenate

Example Input: Cutaneous necrosis after injection of polyethylene glycol-modified interferon alfa.
Example Output:
interferon alfa