Wiktionary
hopantenic acid
n. homopantothenic acid
Wikipedia
Hopantenic acid
Hopantenic acid (homopantothenic acid), also known as N-pantoyl-GABA, is a central nervous system depressant. Formulated as the calcium salt, it is used as a pharmaceutical drug in the Russian Federation for a variety of neurological, psychological and psychiatric conditions and sold as Pantogam . It is not approved for use in Europe or the United States.