I just thought I'd add something to this.
While reading up on bupe/cimitidine I came across:
http://bja.oxfordjournals.org/cgi/content/abstract/67/6/748
Cimitidine is thought to not only affect opiates, but benzo's as well. The xanax pamphlet lists stats, the Merck index only mentions there may be metabolism contradictions with clonazepam.
Some cimitidine is taken, and a while is waited, to allow it to pass through the stomach, into the liver, where it blocks the CPY34A4.
Then some Suboxone is taken, not orally, and it will go about as normal.
Then a small amount of Suboxone is swallowed, along with some more cimitidine, and some benzo's. I know that Xanax is affected by cimitidine, and the merck index mentions it as possibly affecting that of clonazepam. Additionally correct me if I'm wrong but benzo's are absorbed so quickly,like alcohol, because they can pass right through the stomach lining.
Since the Suboxone causes the contents of the stomach to be held more, a higher % of the benzo's will be absorbed through the stomach, causing a more rapid onset of peak blood concentration levels, along with a longer duration, because all of it was absorbed in a shorter time.
Once the Suboxone allows the stomach contents to be emptied, they will enter the liver, where there is already Cimitidine inhibiting CPY34A4 (which is an enzyme that both eliminated Suboxone, and Benzo's). With this new emptying, comes a new batch of cimitidine, to continue to inhibit CPY34A4.
I believe this method will lead to a longer acting (some would say stronger) dose of suboxone, as well as a more rapidly absorbed, more fully absorbed, and longer elimination of Benzo's.
Seem's pretty good to me. Please correct my errors, as I only want to learn as much as possible.
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Edit:
My girlfriend and I have both taken Suboxone along with various dosages of cimitidine (by no means scientific), but pre,during, and post dose of Suboxone.
I'm not 100% sure if it increases the effects, although I would assume so since it made me much more tired, however, it certainly makes it last way longer. CPY34A4 is blocked for a long time. The reason I know this is because over the past few days while taking the combination, I've been sleeping like 14 hours.