Definition of "methylphenidate" [methylphenidate]

• A drug, C14H19NO2, chemically related to amphetamine, that acts as a mild stimulant of the central nervous system and is used especially in the form of its hydrochloride for the treatment of narcolepsy in adults and hyperkinetic disorders in children. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "They confiscated about 100 pounds (50 kilograms) of crystal methamphetamine, 60 pounds (30 kilograms) of heroin and 20 pounds (10 kilograms) of methylphenidate, which is often used to cut heroin, according to the statement."
• "In addition, the drug, generically known as methylphenidate, has side effects including an increased heart rate, and may not be suitable for certain patients."
• "Dr van Swinderen fed the fruit flies methylphenidate, which is sold under the brand name Ritalin and used to treat children with ADHD."