over a period of weeks or even months. Alternatively, the patient may be switched to a longer-acting gabaergic agent such as diazepam (in a manner similar to the use of methadone therapy for opiate addiction) before attempting tapering. While an acute cerebral edema is widely believed to be the initial cause of actor and martial artist Bruce Lee's death in 1973, another factor which may have compounded and thereby contributed to Lee's death, was his decision to take Equagesic (a brand which combined meprobamate and aspirin). "In the January 2008 issue of Drug Safety Update, a stop press article announced the recent European review of carisoprodol for which the Committee for Medicinal Products for Human Use concluded that the risks of treatment outweigh the benefits. This review was triggered by concerns from the Norwegian Medical Agency that carisoprodol (converted to meprobamate after administration) was associated with increased risk of abuse, addiction, intoxication, and psychomotor impairment." February 2008. The European Medicines Agency recommended suspension of marketing authorisations for meprobamate-containing medicines in the European Union in January 2012. Synthesis Meprobamate, 2-methyl-2-propyl-1,3-propanediol dicarbamate is synthesized by the reaction of 2-methylvaleraldehyde with two molecules of formaldehyde and the subsequent transformation of the resulting 2-methyl-2-propylpropan-1,3-diol into the dicarbamate via successive reactions with phosgene and ammonia. See also 2-Methyl-2-propyl-1,3-propanediol Carisoprodol Lorbamate Pentabamate Phenprobamate References External links List of psychotropic substances under international control. The Comparative Toxicogenomics Database: Meprobamate. RxList.com - Meprobamate Sedatives Hypnotics Muscle relaxants Anxiolytics Carbamates GABAA receptor positive allosteric modulators NMDA receptor antagonists