Access Meds carries Meprobomate 400mg plain (nothing compounded with it) - I have seen it on their medication list, but never ordered it, and never even taken it, as I don't really have any need for a barbiturate.... But I know they do carry it - although they are closed right now until mid-January.....

I'm not for certain but I think they way their site is categorized, it is under 'CNS Medicines/Other' (when you click 'CNS MEDS' it will list CNS Stimulants, Benzodiazepines, and Other - I think it is under Other) - Good luck hope this helps, and hope I am not mistaken as to where I saw it at!