<unk>  (), also known as tetramethylglycoluril and sold under the brand names Adaptol and Mebicar, is an anxiolytic medication produced by Latvian pharmaceutical company Olainfarm and sold in Latvia and Russia. The chemical structure of<unk>  is similar to metabolites in human body and it doesn't interact with acids, alkali, oxidants and reducing agents. It affects all major neurotransmitter systems.<unk>  has an effect on the structure of limbic–reticular activity, particularly on hypothalamus emotional zone, as well as on all 4 basic neuromediator systems – γ aminobutyric acid (GABA), choline, serotonin, and adrenergic activity. It decreases the brain norepinephrine levels, exerts no effect on the dopaminergic systems, increases brain serotonin levels, and does not elicit cholinolytic action.<unk>  purportedly has anti-anxiety (anxiolytic) properties. It is also used to aid smoking cessation. In addition,<unk>  may be useful in the treatment of ADHD symptoms. In contrast with typical anxiolytic medications such as benzodiazepines,<unk>  is non-habit forming, non-sedating, and does not impair motor function. It can be prepared by condensation of N,N-dimethylurea with glyoxal. One publication reported an elegant procedure for doing this. They combined N,N-dimethylurea, glyoxal, and a catalytic amount of phosphoric anhydride in an aqueous solution at room temperature and after sufficient time<unk>  was conveniently isolated by filtration. The filtrate can be re-used by adding more dimethylurea and glyoxal (no additional catalyst) and obtaining respectable yields, although this requires a longer reaction time. As of 2021,<unk>  has not been evaluated by the United States medical system.
Temgicoluril
Fursultiamine
Gadobenic acid
Dotinurad
Photoanethole
Pirimiphos-methyl
Telotristat ethyl
Trenbolone hexahydrobenzylcarbonate