I have bought some at walgreens...They have one for every drug, they have one for opiates, and yes that would be hydrocodone...Also if it comes back negative, there is an address on there to send it for them to double check, if you have your doubts..
Can't hurt to try, they are not too expensive...
good luck
r2r
Home tests are not always accurate. They have been known to have false positives and false negatives. Check to see what a local blood test lab charges.