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: Two other patients who did not receive prochlorperazine, developed retinal problems which later improved, one after only 15 g of desferrioxamine.
Example Output: desferrioxamine

Example Input: We observed 2 cases of hepatotoxicity after a high-dose methylprednisolone treatment of a demyelinating disease and evaluated the potential relationship in the light of available evidence.
Example Output: methylprednisolone

Example Input: Fatal outcome of intravesical formalin instillation, with changes mimicking renal tuberculosis.
Example Output:
formalin