Back کلرمتیازول AZB Klomethiazol Czech Clomethiazol German Clometiazol Spanish کلرمتیازول Persian Klometiatsoli Finnish Klometiazol Hungarian Clometiazolo Italian Klometiazol NB Klometiazol Polish
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| AHFS/Drugs.com | International Drug Names |
| Routes of administration | Oral |
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| Pharmacokinetic data | |
| Elimination half-life | 3.6–5 hours |
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| ECHA InfoCard | 100.007.788 |
| Chemical and physical data | |
| Formula | C6H8ClNS |
| Molar mass | 161.65 g·mol−1 |
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Clomethiazole (also called chlormethiazole) is a sedative and hypnotic originally developed by Hoffmann-La Roche in the 1930s.[3] The drug is used in treating and preventing symptoms of acute alcohol withdrawal.
It is structurally related to thiamine (vitamin B1), but acts like a sedative, hypnotic, muscle relaxant and anticonvulsant, having the same mechanism of action as traditional barbiturates. It is also rarely used for the management of agitation, restlessness, short-term insomnia and Parkinson's disease in the elderly, when all other treatment options have failed. In the UK, it is sold under the brand Heminevrin (AstraZeneca Pharmaceuticals). Other brand names include Nevrin in Romania, Distraneurin in Germany and Distraneurine in Spain. The drug is marketed either as a free base in an oily solution containing 192 mg in capsule form, or as clomethiazole edisylate syrup. Due to its high toxicity compared to similar drugs it is not recommended as a first-line treatment for any indication and is particularly dangerous to patients with an elevated risk for drug abuse such as those with a personal or familial history of addiction.
- ^ 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.
- ^ "Heminevrin / Clomethiazole 192 mg Capsules". Electronic Medicines Compendium. Retrieved 7 September 2022.
- ^ CH patent 200248, "Verfahren zur Darstellung von 4-Methyl-5-B-chloräthylthiazol", issued 1938-09-30, assigned to Hoffmann-La Roche