ritalin
/ˈrɪtəlɪn/
noun
- A brand name for a drug used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.
- Some students misuse Ritalin to stay awake and study longer.
- The doctor prescribed Ritalin to help the child focus in school.
- Ritalin can improve concentration, but it must be taken under medical supervision.