Zolpidem, sold under brand names like Ambien, Stilnox, and others, is a sedative-hypnotic medication primarily used for the short-term treatment of insomnia.
It helps people fall asleep faster and stay asleep by modulating GABA receptors in the brain, promoting relaxation and drowsiness.
Zolpidem belongs to the class of non-benzodiazepine hypnotics, specifically the imidazopyridine class, although it acts on the same GABA-A receptor complex as benzodiazepines.
It is available in several forms:
∙ Immediate-release tablets (for falling asleep)
∙ Extended-release tablets (for both falling and staying asleep)
∙ Sublingual tablets and oral sprays
![2-[Methyl(Nitroso)amino]butan-1-ol](https://veeprho.com/wp-content/uploads/2024/02/VE0019117-2-Methyl-Nitroso-amino-butan-1-ol.png "2-[Methyl(Nitroso)amino]butan-1-ol")
Parent: Zolpidem
![6-Methyl-2-(4-methylphenyl)-alpha-oxo-imidazo[1,2-a]pyridine-3-acetamide](https://veeprho.com/wp-content/uploads/2025/01/VE0022868-6-Methyl-2-4-methylphenyl-alpha-oxo-imidazo.png "6-Methyl-2-(4-methylphenyl)-alpha-oxo-imidazo[1,2-a]pyridine-3-acetamide")
Parent: Zolpidem
Impurities in zolpidem can arise from its synthesis, storage, or formulation processes. Regulatory guidelines such as ICH Q3A/B require impurity levels to be strictly controlled for patient safety.
Process-Related Impurities
Degradation Impurities
Elemental Impurities
Analytical Techniques for Impurity Detection
ICP-MS for elemental impurity analysis
Zolpidem is used to treat:
