Hello dunagan2b~
According to Norchem Lab, the following often cause false positives in
methamphetamine screenings:
* Ephedrine
* Fenfluramine
* Phenmetrazine
* Pseudoephedrine (Sudafed)
* Phenylpropanolamine (PPA)
* Thorazine (Chlorpromazine)
* Methylphenidate (Ritalin)
* Phentermine
* Propranolol
* Bupropion
* Mahuang Tea (or tea made from plants in the ephedra family)
(Norchemlab: http://www.norchemlab.com/factsheets/amphe_metha.pdf )
The following should be added to the list:
* Desoxyephedrine
* Nyquil, Contact, Allerest, Tavist-D, Dimetapp, and other similar cold medications
* Phenegan-D, Robitussin Cold and Flu
* Over-the-counter diet aids like Dexatrim, Accutrim
* Over-the-counter nasal sprays (like Vicks inhaler, Afrin)
* Asthma medications (like Marax, Bronkaid tablets, Primatine Tablets)
* Prescription medications (like Amfepramone, Cathne, Etafediabe,
Morazone, phendimetrazine, phenmetrazine, benzphetamine, fenfluramine,
dexfenfluramine, dexdenfluramine, Redux, mephentermine, Mesocarb,
methoxyphenamine, phentermine, amineptine, Pholedrine,
hydroymethamphetamine, Dexedrine, amifepramone, clobenzorex,
fenproyorex, mefenorex, fenelylline, Didrex, dextroamphetamine,
methphenidate, Ritalin, pemoline, Cylert, selegiline, Deprenyl,
Eldepryl, Famprofazone)
("Methamphetamine and Drug Tests," Erowid:
http://www.erowid.org/chemicals/meth/meth_testing.shtml )
Many of these drugs are found in a variety of medications. For another
list of things that affect meth tests, see "Methamphetamine Drug
Testing Facts:" http://www.ipassedmydrugtest.com/_methamphetamine_drug_test_kits.asp
Please also note that it's not just medications that may affect drug
testing, but natural, herbal remedies and vitamin supplements, as
well. In addition, diabetes, kidney, and liver problems may cause
false positives, so it's prudent to bring this up with your MD.
Not only may your MD test you, discovering a previously unrecognized
medical condition, but your MD should be able to tell you if any
medications, vitamins, or other remedies you've been taking might be
on the list of things that causes false positives for meth use.
Best wishes,
Kriswrite
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