Methohexital or methohexitone (marketed under the brand names Brevital and Brietal) is a drug which is a barbiturate derivative. It is classified as short-acting, and has a rapid onset of action. It is similar in its effects to sodium thiopental, a drug with which it competed in the market for anaesthetics.
What is Methohexitone?
Methohexital binds to a distinct site which is associated with Cl− ionophores at GABAA receptors. This increases the length of time which the Cl− ionopores are open, thus causing an inhibitory effect. Metabolism of Methohexitone is primarily hepatic via demethylation and oxidation. Side-chain oxidation is the primary means of metabolism involved in the termination of the drug’s biological activity.
How to used Methohexital?
Methohexital is primarily used to induce anesthesia, and is generally provided as a sodium salt (i.e. metohexital sodium). It is only used in hospital or similar settings, under strict supervision. It has been commonly used to induce deep sedation or general anesthesia for surgery and dental procedures. Unlike many other barbiturates, methohexital actually lowers the seizure threshold, a property that make it particularly useful when anesthesia is provided for an electroconvulsive therapy (ECT).
When to Take Brevital Sodium?
Methohexital can be synthesized in the classic manner of making barbituric acid derivatives, in particular by the reaction of malonic ester derivatives with derivatives of urea. The resulting allyl-(1-methyl-2-pentynyl) malonic ester is synthesized by subsequent alkylation of the malonic ester itself, beginning with 2-bromo-3-hexyne, which gives (1-methyl-2-pentynyl)malonic ester, and then by allylbromide. In the final step, reaction of the disubstituted malonic ester with N-methylurea gives Methohexitone.
Side effects of Methohexital
Other Names: Methohexitone, Methodrexitone, Metohexital, Enallynymall, Methohexitalum, Brietal, Yellows, Barbs, Yellow Jackets, Phennies, Red Birds, Reds, Amytal, Downers, Red Devils, Blue Birds, Rainbows, and Tooies, Metoesital
- a history of porphyria (a genetic enzyme disorder that causes symptoms affecting the skin or nervous system).