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yes it can produce false positive results. this occurs with tests that use antibodies that screen for amphetamines. sudafed contains pseudoephedrine that is similar in structure to amphetamines and therefore causes cross-reactivity with the antibodies directed against amphetamines.
if a test is being done in a legal manner; e.g. a workplace drug screen, the initial immunoassay needs to be followed up with a more precise assay - usually GC-MS. This assay will be able to differentiate between sudafed and amphetamines
What else can I help you with?
Can Sudafed make a positive drug screen for cocaine?
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)
Does Sudafed make you test positive for amphetamines?
yes it can produce false positive results. this occurs with tests that use antibodies that screen for amphetamines. sudafed contains pseudoephedrine that is similar in structure to amphetamines and therefore causes cross-reactivity with the antibodies directed against amphetamines. if a test is being done in a legal manner; e.g. a workplace drug screen, the initial immunoassay needs to be followed up with a more precise assay - usually GC-MS. This assay will be able to differentiate between sudafed and amphetamines
Will Sudafed make you fail a drug test?
not usually, especially if it's a test used specifically to detect DRUGS (i.e., urine analysis). however, sometimes it can cause a false positive for amphetamine in less sensitive tests.
Will hydrocodone cause false positive for amphetamine?
No, hydrocodone is an opiod(which it will show up as on most test) and unrelated to amphetamine.
What can cause a positive methamphetamine result in a hair test?
sudafed can give u a false positive for meth be careful
Can taking Sudafed and adderall create a false positive for meth?
Even if sent to a lab, it shouldn't show up as meth at all. The tests are broken down and they will look for the poisons that are used in meth. I have talked to drug counselors regarding this very thing and was assured this fact. Good luck. I would stop using the Sudafed if you are worried about it.
Can trimethoprim give false positive for amphetamine?
i could do .... if your test is a proper test tho i dough it
Which herbal supplements can cause a false positive on a urine drug test -?
Valerian Root can test positive as benzodiazepines. Ephedra can test positive as an amphetamine.
What substance could make a drug test come back positive for methamphetamine's?
Erowid.org has a list of all the substances that can throw a false positive for meth. It is a VERY long list--probably 80 different drugs including diet aids, cold pills and a lot of prescription medicines. Meth is a phenethylamine-class drug AND an amphetamine-class drug, so any drug that looks like an amphetamine, or any drug that looks like a phenethylamine (and there are a BUNCH of these, most not being any fun at all) will trigger a false positive for meth. It gets better: the first order metabolite of meth is amphetamine, so anything that will throw a false positive on an amphetamine test will also throw a false positive on a meth test. That having been said, most people don't test for meth at all--they look for amphetamine because methamphetamine (amphetamine with a methyl group attached) demethylizes in the liver quickly.
Can anxiety cause a false positive for amphetamine?
If that chemical occurs naturally, I'd think that the test would allow for latitude in that case. So, you probably took a medication that had amphetamine in it.
What herbal supplements can cause a false positive for benzodiazepines?
Chinese herb pills will throw a positive for benzodiazepines--but it's not a false positive, as there are benzodiazepines in Chinese herb pills.
What kind of drugs can cause a false positive for ecstasy?
Ecstacy (MDMA or methylenedioxymethamphetamine) CAN HAVE MANY FALSE POSITIVES DURING A DRUG TRIAGE SCREEN FOR AMPHETAMINE-LIKE COMPOUNDS. Thses compounds are commonly found in OTC products for cough which contain decongestants, such as phenylephrine, phenylpropanolamine, pseudoephedrine. Some products are Nyquil, Allerest, Sudafed, anything with a "-d" suffix as Tavist-D. Also, certain diet meds such as Dexatrim/Accutrim may cause false positives due to the strong cross-reactivity of these compounds with assay reagents used for amphetamine triage tests. Anything such as Citrimax, HCA, bitter melon is actually a synephrine molecule and will cause a false positive.
