Uh, having methamphetamine in your system!
But other sources say the following can also cause false positive results:
Desoxyephedrine, Desoxyn, Methedrine, Vicks Inhaler
(non-prescription drug), Selegiline, Benzphetamine
and Famprofazon, Dexedrine, Benzedrine, Adderal.
Well to test positive for cocaine and methamphetamine you'll first have to take methamphetamine and cocaine. Methamphetamine usually being injected while cocaine is usually snorted. By doing these drugs you can successfully reach your goal of testing positive for cocaine and methamphetamine on your next drug test!
No, meth will make you test positive for meth.
Meth and marijuana
Assuming you mean Xanex, you will not test positive for meth. Xanex is a benodiazapine so you will test positive for those.
No.
yes
No
meth
Yes you can absolutely test positive for meth using Lipozene
Yes
I just failed one. The test showed positive for methanphetimine! But when sent to a lab it can be determined that it is not meth.
I'm not sure about phenylephrine, but if it does, their tests are poor. However, desoxyephedrine is methamphetamine, so of course it would make you test positive.
No, Zyrtec does not contain any ephedrine/psyeudoephedrine ingredients.