A variety of factors play a role in determining exactly how long hydrocodone takes to be excreted by the body and removed from your system.
It passes through to the urine where it can be detected for three to four days after a dose. Hydrocodone, like many other drugs, can be detected with a hair follicle drug test for up to 90 days. If you have been prescribed hydrocodone and must take a drug screening test, be sure to disclose your prescription to the testing laboratory.