False Positive Drug Tests

False Positive Drug Tests Information

The following substances, at various levels, will cause cross reactions, yielding false positive results when drug testing urine using an immunoassay test device:

AMP (Amphetamine Drug Test)

  • Ephedrine, pseudoephedrine, propylephedrine, phenylephrine, or desoxyephedrine (Nyquil, Contact, Sudafed, Allerest, Tavist-D, Dimetapp, etc)
  • Phenegan-D, Robitussin Cold and Flu, Vicks Nyquil
  • Over-the-counter diet aids with phenylpropanolamine (Dexatrim, Accutrim)
  • Over-the-counter nasal sprays (Vicks inhaler, Afrin)
  • Asthma medications (Marax, Bronkaid tablets, Primatine Tablets)
  • Prescription medications (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)
  • Kidney infection, kidney disease
  • Liver infection, liver disease
  • Diabetes
  • Amoxicillin, tonic water

COC (Cocaine Drug Test)

  • Kidney Infection (kidney disease)
  • Liver Infection (liver disease)
  • Diabetes
  • Amoxicillin
  • Tonic water

MDMA (Ecstacy Drug Test)

  • Ephedrine, pseudoephedrine, propylephedrine, phenylephrine, or desoxyephedrine (Nyquil, Contact, Sudafed, Allerest, Tavist-D, Dimetapp)
  • Asthma medications: Marax, Bronkaid tablets, Primatine Tablets
  • Phenegan-D, Robitussin Cold and Flu, Vicks Nyquil
  • Vicks inhaler, Afrin)
  • Prescription medications: 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)
  • Kidney infection, kidney disease
  • Liver disease, diabetes

MET (Methamphetamine Drug Test)

  • 3,4-Methylenedioxymethamphetamine (MDMA, Ecstacy)
  • d-Amphetamine,
  • 3,4-Methylenedioxyamphetamine (MDA)
  • 1-amphetamine
  • Pseudoephedrine (DayQuill)
  • Ephedrine, pseudoephedrine, propylephedrine, phenylephrine, or desoxyephedrine (Nyquil, Contact, Sudafed, Allerest, Tavist-D, Dimetapp, etc)
  • Phenegan-D, Robitussin Cold and Flu, Vicks Nyquil
  • Over-the-counter diet aids with phenylpropanolamine (Dexatrim, Accutrim)
  • Over-the-counter nasal sprays (Vicks inhaler, Afrin)
  • Asthma medications (Marax, Bronkaid tablets, Primatine Tablets)
  • Prescription medications (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)
  • Kidney infection, kidney disease
  • Liver disease, diabetes

MOR/OPI (Opiate Drug Test)

  • Poppy Seeds
  • Tylenol with codeine
  • Most prescription pain medications
  • Cough suppressants with Dextromethorphan (DXM)
  • Nyquil
  • Kidney infection, Kidney Disease
  • Diabetes, Liver Disease

THC (Marijuana Drug Test)

  • Ibuprofen; (Advil, Aleve (Naproxen), Bayer Select Pain Relief Formula, Cramp End Tablets, Excedrin IB,Genpril, Haltran, lbuprin, Ketoprofen (Orudis KT) , Nuprin, Mediprim, Midol 200, Motrin, Naproxen, Orudis KT, Pamprin, Rufln, Trendar Cramp Relief, etc)
  • Anaprox, Ansaid, Clinoril, Dolobid, Feldene, flurbiprofen, ifenoprofen, Indocin, Lodine, Meclomen, Motrin, Nalfon, Naprosyn, Orudis, oxaprozin, Relafen, Tolectin, Voltaren.
  • Kidney infection (Kidney disease, diabetes) Liver Disease
  • (Aleve)
  • Promethazine (Riboflavin/vitamin B2, Dronabinol (Marinol), Edecrin. Phenergan, Promethegan)
  • Hempseed Oil)
  • Sustiva (efavirenz)