Yes !
cocaine is an opiate... sudaphed can produce positive results for amphetamines(cocaine is NOT an opiate (it is derived from the coca plant not opium), but I do believe sudafed would only produce a false positive for amphetamines)
Drinking coca tea could lead to a false-positive result for cocaine
No.
Prenatal vitamins will not cause a positive drug screen.
ARF (acute renal failure) can NOT cause a positive for cocaine on a drug test.
No, Vicodin will not test positive for cocaine. Vicoden (containing hydrocodone) will test positive for a narcotic. Hydrocodone and cocaine produce different metabolytes, which is what the drug test actually reacts to. A metabolyte is what the drug turns into after your body uses it. Each drug produces different metabolytes.
No.
no from insulin but diabetes, liver disease, kidney infection may show up false positive on drug tests.
yes
No
what medications cause a false positive on a drug screen for marijuana?
Maybe