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).
Lecirelin
Lecirelin, or lecirelin acetate, sold under the brand names Dalmarelin, Ovucron, and Reproreline, is a short-acting gonadotropin-releasing hormone agonist (GnRH agonist) medication which is used in veterinary medicine in Europe and Israel. It is a GnRH analogue and a synthetic peptide, specifically a nonapeptide. The drug was introduced for veterinary use by 2000.