Will CBD Show Up On a Drug Test?
So you’re wondering if cannabidiol will make you fail a drug test….
The answer to this question is “no” and “yes” and also “maybe”
Let me explain…
Drug tests for marijuana aren’t testing for CBD – they’re testing for the metabolites of another popular phytocannabinoid from the Cannabis Sative plant, THC.
Metabolites are these things that your body produces in response to a chemical compound.
The specific cannabis metabolite that drug tests are looking for is 11-nor-delta9-tetrahydrocannabinol-9-carboxylic acid (THC-COOH). When the concentration of this metabolite goes above 50ng/ml in a urine sample, the test comes back positive for marijuana.
CBD does not show up on a drug test because it does not cause the body to produce the same metabolite.
However, full spectrum phytocannabinoid rich oils contain trace amounts of THC, which could theoretically cause your body to produce drug test failing metabolites. But how much? And how likely is this?
It turns out – not very.
If a product contains less than .3% THC then it is considered “hemp” – this is the source of over the counter CBD oil products.
I was able to find a clinical study where healthy participants consumed CBD hemp oils of four different doses of THC. The highest dosage given was 0.6 mg, twice as high as the legal limit for an average 10mg dose of CBD product.
Participants consumed their daily dose for 10 days before drug testing. At the highest dose of 0.6 mg the highest measured THC-COOH concentration in urine was 5.2 ng/mL, which is nowhere near the 50ng/ml that might fail a drug test.
However, patients who are taking doses in excess 1,000 mg/day (as is often the case with people who are trying to prevent epileptic seizures) may well exceed these standards and fail a drug test anyway.
In this case it would be what’s known as a “false positive.”
Drug test clinics know about false positives, and they know how to look further into the results to tell if a fail was in fact a false positive. If you are taking large doses of CBD oil your best bet is to bring the bottle and the receipt to your drug test facility and ask them what you should do in the event of a false positive.
As your scheduled drug test approaches be sure to drink plenty of water and acidic fruit juices like orange juice to help clean your system of any residual marijuana metabolites.
If you’re overly concerned about potential drug tests, look for a CBD hemp tincture with 0% THC.
I talk about 3 of my favorite brands on my main best CBD oil page. Two of those offer 3rd party lab test results proving a 0% the content. The third (elixinol) may have a higher THC content than you are looking for and may want to be avoided for this reason.