No.
what medications cause a false positive on a drug screen for marijuana?
Yes, it can.
No.
Yes
No; Lipitor is not a psychoactive drug and would not cause a false urine test for amphetamines.
Smoking marijuana.
Yes!
The cause for arthritis is unknown
permafry
It can cause a false positive for marijuana. Aleve can too.
poppy seeds
The only thing that would cause you to test positive for marijuana, or THB that is what the test is actually searching for, is for you to ingest it either b smoking it or eating it. It is possible for you to test positive for THB just by being in a room with a high or heavy concentration of smoke.