All drugs will alter your urine
Yes
A non prescribed drug is a drug you buy at a street corner. It's also a drug that a doctor didn't prescribe to you.
Niacin
When Oxidant is reported on a urine drug screen, it means the urine has been tampered with to try and alter the results.
yes
All opiate drugs...
Don't do drugs.
Don't take drugs
Don't take drugs.
...Really? You asked that? I'm pretty sure in a urine DRUG test, they are looking for DRUGS. Weed, Meth, Opiates, and Cocaine
Weather the drugs are illegal or prescribed by a Doctor.
Yes, it is possible for the immunosuppressant drugs to be found on a urine drug test.