Products Zolpidem is commercially available as film-coated tablets, sustained-release tablets, and effervescent tablets (Stilnox, Stilnox CR, generics, USA: Ambien). It has been approved in many countries since 1990. Structure and properties Zolpidem (C19H21N3O, Mr = 307.39 g/mol) is an imidazopyridine that is structurally distinct from the benzodiazepines. It is present in drugs as zolpidem tartrate, … Zolpidem
Products Eszopiclone is commercially available in the United States in the form of film-coated tablets (Lunesta). The drug is not registered in many countries. In contrast, the racemate zopiclone (Imovane) is on the market. Structure and properties Eszopiclone (C17H17ClN6O3, Mr = 388.8 g/mol) is the -enantiomer of zopiclone. It belongs to the cyclopyrrolones. Eszopiclone exists … Eszopiclone
Products Zaleplon was commercially available in capsule form (Sonata, 5 mg, 10 mg). It was approved in many countries in 1999. It was discontinued from distribution in April 2013. Structure and properties Zaleplon (C17H15N5O, Mr = 305.3 g/mol) is a pyrazolopyrimidine and exists as a white powder that is practically insoluble in water. It is … Zaleplon