In the first decade of the 20th century, Einstein produced the theory of the conversion of mass into energy, E=mC(2), which was confirmed by laboratory observations. A new theory of the atom was devised by the English physicist Rutherford in 1913.
Methylphenidate, Methylin. Generic Ritalin. Methylphenidate (methylin) is a moderately priced drug used to treat attention-deficit hyperactivity disorder (ADHD). It is also used to treat narcolepsy. This drug is slightly more popular than comparable drugs. It is available in brand and generic versions.
What Is the Difference Between Focalin & Ritalin? Ritalin and Focalin are two of the commonly prescribed drugs used for treating attention deficit hyperactivity disorder (ADHD). Knowing the differences between these medications may be helpful when developing a plan of action for ADHD treatment. Focalin, or dexmethylphenidate, is a mild stimulant that is most commonly used to treat ADHD.