Attention deficit hyperactivity disorder management
There are two major medications derived from methylphenidate's isomers: a racemic mixture of half d-threo-methylphenidate and half l-threo-methylphenidate called methylphenidate (Ritalin, Concerta), and an enantiopure formulation containing just d-threo-methylphenidate called dexmethylphenidate (Focalin).
Articaine
It was approved by the FDA in April 2000, and became available in the United States of America two months later under the brand name Septocaine, an anesthetic/vasoconstrictor combination with Epinephrine 1:100,000 (trade name Septodont). Zorcaine became available there a few years later, also. Articadent (Dentsply) became available in the United States in October 2010. The three brands currently available in the United States are all manufactured for these companies by Novocol Pharmaceuticals Inc. (Canada). Ubistesin and Ubistesin Forte (3M ESPE) are also widely used in the United States and Europe. Orabloc (Pierrel) is aseptically manufactured and was approved by the FDA in 2010, became available in Canada in 2011, and in Europe from 2013.