Opiates will stay in urine for 1-7 days, depending on your size and the amount/frequency of use. However, they will remain at detectable levels in your blood for up to 20 days, again, depending on the volume, frequency, and your size.29 people found this useful.onfidence votes 74. Hydrocodone is most like any form of codeine, Lortab, Lorcet, etc... Any kind of hydrocodone will stay in your urine depending on weight and amount taken for a period of 2 days I've seen, all the way up to 7 days max.