What prescription drug can look like illegal drugs on a test?

The test administrator will tell the donor, "please list all the prescription medications you are on." You will give them a list of the medicines you take. You're best off telling them the name of the doctor you go to.

Then, when the donor comes up positive for a prescription drug, he'll be asked to provide his prescription for it. If you've got one, you're fine.


Quick note: if you are in a safety-sensitive function and you're taking a drug that will affect your performance, you are out of service until the drugs clear your system. So if you have a weed prescription and you fly planes, you can't fly until you are drug free.