Were you looking for information about Focalin? Focalen is a common misspelling of Focalin.
Focalin® (dexmethylphenidate hydrochloride) is a prescription drug used mainly to treat attention deficit hyperactivity disorder (ADHD) in children and adolescents -- though it can also be used off-label to treat adult ADHD. Large clinical trials have shown Focalin to be effective at helping children and teenagers who have ADHD. Focalin can help improve the behavior of these children and teenagers, as well as to help them sit still and pay attention in the classroom. Focalin side effects can include abdominal pain (or stomach pain), nausea, and a fever. In order for Focalin to work properly, you must take it as prescribed. Talk with your healthcare provider if you are unsure about anything related to Focalin or your Focalin dosage. If you happen to overdose on Focalin, seek medical attention immediately.
(Click Focalin for more detail on how Focalin works to treat ADHD, its potential side effects, and what you should tell your healthcare provider prior to taking the medication.)