He is the one that suggested using pagoclone (a benzodiazepine-like drug, more specifically a z-drug relative) as an alcohol replacement, but I doubt sentia contains this or anything like it.
His argument for things like pagoclone as an alcohol replacement is a foolish one. Sure, benzodiazepines or other compounds that bind to the benzodiazepine binding site do possess lower acute toxicity than alcohol, and are not nearly as toxic to the organ systems as alcohol is during chronic use. But the thing is, they can produce physical dependency far more rapidly than alcohol due to their tendency to pretty quickly dysregulate the GABA-A system. For instance many people drink a few drinks a night for years and can stop cold turkey without withdrawal symptoms. Yet almost anyone who takes say three zolpidem tablets a night for 6 months is going to have hell to pay if they suddenly stop. Sure, drugs like pagoclone are less toxic, but they can cause profound GABA-A dysregulation pretty quickly and in a way that alcohol doesn't. Beyond that, the euphoric effects of alcohol are probably more related to NMDA-antagonism. It's a hard sell.
But who knows what's in sentia though. I'm sure someone has independently tested it via mass spec at some point however.