Your withdrawal after 3 weeks at 10 mg per day, assuming you didn't have any kind of opiate habit before, is not going to be much. You might feel a little mentally out of it the first three days, general feeling of uncomfortableness (is that a word?), and on day 3 (the worst day of opiate withdrawal) some diarrhea. Immodium'll help, so will a benzo or benadryl if you get insomnia. No need to taper, you'll be fine.

Now if you were taking more than 10 mg, you'd have a problem, although not nearly as big a problem as if you were taking them 3 mo's to a year. Beyond that, you've got a serious problem.

-yawkaw