It does ? Here in Canada and I think theUSA too we have 15 and 30mg gelcaps....everytime I think of the dreamy purple and marine blue 30mg gelcaps I drool a little....that stuff was potent...it was able to put me, an insomniac since childhood into a very deep 8 hour completely refreshing sleep unlike anything else....3 of the 30mg's would make me almost trip over my girlfriend while crawling over in bed (my side of the bed is next to the wall and otherwise unreachable heh.
Nitrazepam (Mogadon) which somehow disappeared from the US's pharmacopeia for i don't know what reason is the only one that is just as good to me. A 10mg Mogadon = 4mg of xanax. The only thing I could imagine is stronger (at least for the time you feel it) is triazolam...while still available here, is very hard to get. They got rid of the 0,5mg triazolams a long time ago, leaving us with the 0.25 and 0.125mg only.
tl;dr 30mg temaz gelcaps :