I have a script of hydrocodone that is PRN that was filled the end of June. I take them VERY carefully and ONLY if I absolutely need them. I know I have a drug test coming up very soon for employment and was wondering how long this script will cover me for? I am in a ton of pain and want to take one but I am scared it will mess up my drug test. I can't afford to lose my job but also can not function in this pain. Does anyone know if this script is considered out dated. I don't have a clue how any of this works but want to be on the safe side.