I take hydrocodone for back pain. The last time i went to my Dr. , she did a urine test. When i went back the next time, she said that there was some kind of illegal drug in my urine. I don t and never have taken anything that wasn t prescribed for me. How could this have happened? I ve been racking me brain ever since she told me that. She asked if someone could have put something in my food or drink. I ve been very depressed and am taking antidepressants, to depressed to be going out looking for street stuff. I just sit around the house and cry. I m 68 yrs old, a little old to start that kind of crap.