500 mg
Can trazadone give a false positive urine drug screen for methamphetamine
well i believe it will.
Using someone else's urine, who has used pot, for the drug test would give a false positive.
very rare
Caffeine will not cause a false positive in drug tests.
yes
Valium gives a false positive for PCP and a true positive for benzo.
Sibutramine is not detectable in urine unless you take very high doses. Therefore, it will not be detectable on a urine drug test.
Bromfed has been reported to cause false-positive results in urine drug tests.
If by roughage you mean bushes, trees or grass, no.
Valerian Root can test positive as benzodiazepines. Ephedra can test positive as an amphetamine.