<unk> , sold under the brand names Anvifen, Fenibut, and Noofen among others, is a central nervous system depressant with anxiolytic effects, and is used to treat anxiety, insomnia, and for a variety of other indications. It is usually taken by mouth as a tablet, but may be given intravenously. Side effects of<unk>  include sedation, sleepiness, nausea, irritability, agitation, dizziness, and headache, among others. Overdose of<unk>  can produce marked central nervous system depression including unconsciousness. The medication is structurally related to the neurotransmitter γ-aminobutyric acid (GABA), and hence is a GABA analogue.<unk>  is thought to act as a GABAB receptor agonist, similarly to baclofen and γ-hydroxybutyrate (GHB). However, at low concentrations,<unk>  mildly increases the concentration of dopamine in the brain, providing stimulatory effects in addition to the anxiolysis.<unk>  was developed in the Soviet Union and was introduced for medical use in the 1960s. Today, it is marketed for medical use in Russia, Ukraine, Belarus, Kazakhstan, and Latvia. The medication is not approved for clinical use in the United States and most of Europe, but it is also sold on the Internet as a supplement and purported nootropic.<unk>  has been used recreationally and can produce euphoria as well as addiction, dependence, and withdrawal. It is a controlled substance in Australia, and it has been suggested that its legal status should be reconsidered in Europe as well.
Phenibut
Cromoglicic acid
Squalene
Bolesatine
Beta-Zearalenol
Desmethylchlorotrianisene
Chlormerodrin
Truenat