Click Here to Visit the Site: https://bigpharmausa.com/how-long-does-hydrocodone-stay-in-the-system/ Hydrocodone stays in the body for several days, although the exact duration varies based on factors like dose, metabolism, age, liver function, and how long someone has been taking it. In general, the drug’s effects last about 4–6 hours, but it can be detected in urine for 2–4 days, in blood for up to 24 hours, in saliva for 1–2 days, and in hair for up to 90 days. Extended-release forms may remain detectable slightly longer. These timelines are averages, so individual results can differ.