Okay, from what I understand the half life is 24-50 hours? With single use it says it is out of your system in 3-7 days. If one was taking 4-6mg about three to four times a week would it be gone in a week from your last dose or build up in your system and stay there a little longer like, lets say two weeks. Or would it be like valium and be in there for up to a month with using it a couple times a week at 4-6 mg??
As far as I am aware, and I'll stand corrected:
Yes the half life is approximately 20-50 hours depending on how well you metabolise it.
It stays in your system, and is detectable in your urine, for up to 7 days. The time period will be longer for tissue, blood or hair tests.
I would have imagined that it would be gone from your system within 7 days of last use, though perhaps a little longer, seeing as 6mg is a fairly large dose, your body would have to do a lot more work to rid itself of the drug.
I think, if you took 10mg then it would take ~50 hours to reduce this down to 5mg, and then another ~50 hours to reduce this down to 2.5mg and so on and so forth.
As far as I am aware a drug is counted as eliminated from your body after 7 half lifes.
I assume you've got some kind of drugs test that you're trying to avoid?
That's my limited knowledge on half lifes, so would happily stand corrected and actually be interested for a more scientific answer myself.