I wouldn't worry about it. I know that here in Ohio, as long as you show them the prescription bottle, they don't report on the substance. I was in your shoes once, except I was taking Darvocet. I showed them the prescription bottle, and they wrote it down, and sent it to the lab with my urine. By the way, the test came back clean, and I was taking 2 more tablets per day than what my doctor wrote the script for.