Cyclobarbital, cyclobarbitol or cyclobarbitone is a barbiturate derivative developed in the early 1920s in Germany.

It was available in Russia until 2019, marketed and distributed as Reladorm, a fixed-dose combination pairing 100 mg cyclobarbital and 10 mg diazepam (a benzodiazepine anxiolytic, muscle relaxant, and anticonvulsant) indicated for treating insomnia before it was discontinued in 2019.

References

  1. Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-16.