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: The psychotic behavior resolved completely soon after the discontinuation of levetiracetam.
Example Output: levetiracetam

Example Input: Severe neurotoxicity with methyl G: CALGB experience.
Example Output: methyl G: CALGB

Example Input: CASE SUMMARIES: Two patients with stable hypothyroidism experienced symptoms of hypothyroidism with increased serum thyroid-stimulating hormone (TSH) concentrations after switching from 1 levothyroxine product to another.
Example Output:
levothyroxine