Having a real tough time nailing this one down despite hours of searching and even a few pharmacy phone calls:
They're real small (smaller than your average dilaudid tablet), medium orange or dark peach, round, biconvex, with '10' imprinted on one side and no markings on the other side and no scoring.
Before I even saw them I was led to believe they were lorazepam but it seems like every single manufacturer of lorazepam makes them white. And why would it have a '10' on it? Or is it an '01' Can't tell.
The only reference to this on the internet that I am fairly certain is the same exact pill was a forum post somewhere and that guy never got an answer but he did mention that the pills might be from Canada. Don't know for sure about that either.
If anyone can help me here I'd sure appreciate it.
Never mind.
I put it in wikipedia and then googled the trade name Duvoid.
Found a pic. It's flat, not biconvex, and the "10" is split by a score.
Back to searching.
Is there a little squiggle on the "1" to give you an orientation?
Is it definitely "10" and not "01"?
Also, is it film-coated with the imprint "painted on" or is it stamped into it?
The '1' is just a straight vertical bar so I suppose there's no real way to tell if it's '10' or '01'.
I had done some searching using '01' and the results were pretty miserable. 
BTW: Thanks for your help.
Oh yeah, it's not coated and the markings are imprinted or stamped into the pill with no ink.

I found a reference to canadian tablet described as round orange imprinted "10" that is Bethanechol Chloride 10 mg
made by a company called Roberts to treat urinary retention.
There's no picture and no dimensions are listed.