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).
Cafaminol
Cafaminol (brand names Rhinetten, Rhinoptil), also known as methylcoffanolamine, is a vasoconstrictor and anticatarrhal of the methylxanthine family related to caffeine which is used as a nasal decongestant in Germany. It was introduced in 1974 and was still in use as of 2000.