It depends on the patient, the strength of the medication, how long you've been taking them, and your overall dependence/tolerance level. Generally, the longer you've been taking it and the higher the dose, the stronger the withdrawals are. How long they last is different for each person, but regardless you should never stop and do it cold turkey. Aside from the extreme pain and discomfort, you risk other problems and serious injury to yourself if you're not being supervised or monitored through the process.
The easiest way is to use a system of Incremental Dose Reduction. While I've written about it many times here on WA, I posted a How To on E-How last month that has the step-by-step procedure you can follow that will help you.
If you don't want to do it that way, you can always ask your doctor for withdrawal drugs like Suboxone. The problem with those though, is that it's just another drug you'll eventually need to stop taking as well. IDR gets you to the point where you can stop taking them altogether.
You can see the procedure here: http://www.ehow.com/how_4722205_reduce-opiate-dosage-minimum-withdrawal.html
It depends on how many mg's of hydrocodone are in the pill.
lortab 5 lortab 7.5 and lortab10
123 days.
I had 25 lortabs illegally and i got a class 2 misdemeanor in the state of Utah so certain areas you can have many.
27 through 89 days
29.5 days
548 days.
80 days.
106 days, including both days.
548 days.
181 days, in leap year 182.
233 days.