It depends how it is taken, all I know is that tobacco which is chewed or sucked/eaten can stay in the body for up to several months. Smoking I'm not to sure about?
One Day
30 days
How long does it take for a pelvic imflamatory disease to leave your body
How long does it take for voltaren to leave your system.
As long as you can hold it in.
15 months
Not sure
Ten weeks
two to three days.
16 years
6 days
It has a long half life so a good number of weeks before all traces leave the body
48 hours
http://wiki.answers.com/Q/How_long_will_it_take_for_alcohol_to_leave_your_body_totally"