DEFINITION: False Positive Drug Test s are drug free samples falsely being reported as showing positive for specific drugs.

This Should Be Really Intimidating And It Could Happen To You!

A false positive drug test can occur for a number of reasons including: improper laboratory procedure, mixing up samples, incorrect paperwork and passive inhalation (second hand smoke).  But the most common cause of false positive drug test s are cross reactants.  A cross reactant is a substance which because of its similar chemical structure to a drug or its metabolite can cause a false positive drug test result.

There are many legal ramifications one must consider and any information provided on this web site is not intended to interpret the law or give legal advice, so Please See An Attorney For Legal Advice.  We also must present you with our legal disclaimer which is very important.  We take this legality discussion very seriously, so Please Read Our Disclaimer.  These things said, let's get on with the discussion.

Drug Test Interaction With Off-The-Shelf Medicines And Foods

Be aware that certain foods and over-the-counter medications can cause you to test "positive" for various kinds of drugs.  Some simple examples are:

• Poppy seeds, for example, can show up on a drug test as morphine.

• Cold remedies that contain codeine can also cause a positive result for morphine.

• Valium reportedly can produce erroneous indications of PCP (Phencyclidine), and other cold remedies can apparently produce false positive drug test of methamphetamine usage.

• The widespread availability of hemp-containing products, including everything from hemp-seed oil nutritional supplements to hemp-seed candy, cookies, cheese, bread, cooking oil, and general seasoning, means that ingesting ANY of these products could potentially cause a false positive result on a test for marijuana.

Urine And Hair Drug Testing Is Highly Susceptible To False Positive Drug Testing.

Susceptible to the point that some experts call such testing "junk science". Did you know that people with dark skin are particularly susceptible to false drug testing results when exposure to second hand marijuana or cocaine smoke is absorbed into their hair.

More than 250 over-the-counter or prescription drugs can cause you to test positive on a drug test.

• Pain relievers such as Advil, Nuprin, Motrin

• Menstrual cramp medications like Midol and Trendar

• Ibuprofen is known to cause positive samples for Marijuana

• Anti inflammatories such as Naproxyn

• Dristan Nasal Spray, Neosynephren, Vicks Nasal Spray, Sudafed

• Over the counter appetite suppressants which contain propanolamine

• Common nasal decongestants can cause a positive reading for Amphetamines

• Medications containing chloropromazine and fluspirilene may yield a positive when tested for amphetamines

• Vicks Formula 44M containing Dextromethorphan, and Primatene-M containing perylamine as well as the pain reliever Demerol, and prescription anti-depressant Elavil test positive for opiates up to three days

• Quinine water can also cause a positive reading for opiates.

• Poppy Seeds such as the ones on a bagel from your favorite deli, represent a potentially serious source of falsely positive results in testing opiate abuse.

• Nyquil Nighttime Cold Medicine will test positive for Methadone up to two days.

• Amoxicillin has caused positives for cocaine

• Diazepam tests positive for PCP

• A small fraction of the population excrete large amounts of endogenons lysozyme or malate dehydrogenase in their urine which can produce a positive drug test.

• Africans and certain Orientals might test positive for marijuana due to the pigment melanin in their skin which shows up in a dark person's urine sample.

• Second hand marijuana or cocaine that you might inhale may give your test a positive result for several days.

PLEASE READ THIS DISCLAIMER:  Let us first say that not all drug tests are sensitive to all of the following and just ingesting one or more of these ingredients will not guarantee a drug test false positive test.  Also just by saying you have ingested one or more of these ingredients will not automatically dismiss a false positive drug test.

Let's Take A Look At The Causes Of False Positive Drug Test s.

These are just guidelines and should not be taken as absolutes.

• Marijuana False Positive Drug Test Causes

• Cocaine False Positive Drug Test Causes

• Amphetamine False Positive Drug Test Causes

• Opiate False Positive Drug Test Causes

• Benzodiazepine False Positive Drug Test Causes

• Barbiturate False Positive Drug Test Causes

• LSD False Positive Drug Test Causes

• Ecstasy False Positive Drug Test Causes