How long Cannabis stays in your systemPosted by On

cannabis in your system, cannabis, drug tests

There is no proven formula that will tell a cannabis user how long marijuana will stay in their system. As Americas most commonly used drug in the United States. When marijuana is smoked, THC and other chemicals in the plant pass from the lungs into the bloodstream, which rapidly carries them throughout the body to the brain.

Cannabidiol or CBD which is found in cannabis, has shown to improve the adverse effects of the psychotropic effects of THC. Most tests do not look for the presence cannabidiol or CBD.

When doses exceed or overdosed they surpass the psychotropic limits, users may experience side effects such as increased anxiety, panic attacks, heart rate increase and increased blood pressure.

How long does the cannabis stay in your system, even if you quit cold turkey. Whether you use marijuana occasionally, regularly or daily. This is a much more complicated question than you might think. There is no scientific proof that says in 30 days no traces of cannabis will be found in your urine.

CBD elderly, CBD, medical marijuana

So let us look at some of the factors that can influence the amount of cannabis in your system, to become shorter or greater than the 30 day mythical window.

Drug Dose

  • The higher the drug dose; the longer the detection window. The percentage of active delta-9 THC in marijuana plant material changes considerably, making dosage difficult to estimate.

Frequency of Use

  • The longer the period of time and the greater the rate of cannabinoid usage (chronic users); the greater the body storage of fat-soluble metabolites; the longer the cannabinoid detection window will last.

Metabolism Rate

  • The higher the metabolic rate and function of the user, the faster cannabinoids are broken down. Thus shortening the 30 day window.

Test Sensitivity

  • The more highly sensitive the drug test method, the more likely cannabinoids will be found in the system. How is a sensitivity rate chosen and what is the cutoff limit.

Based upon a 50 ng/ml cutoff concentration for detection of cannabinoids in urine. Here are results concluded by the NCDI study to produce a positive urine drug results.

Occasional marijuana user or single event users.

  • At the 50 ng/ml cutoff level, it would be unusual to detect cannabinoids in urine beyond 3-4 days after smoking cannabis.

Chronic marijuana users.

  • Based upon recent scientific evidence at the 50ng/ml cutoff concentration. It would be unlikely for a chronic user to produce a positive urine drug test result for longer than 10 days after last smoking cannabis.

CBD Oil Consumption

Drug testing looks for the THC metabolites in your system and not the CBD. Therefore consuming CBD oil or any type of CBD product will likely not result in a positive test.

But beware there is small amounts of THC in some CBD products so check your label and or manufacturer.


Workplace testing uses the 50ng/ml cutoff. Therefore most people who smoke socially are much more likely to pass a drug test after around 7-10 days of no marijuana use.

Smoking weed regularly will make it much harder to pass any type of test. The more weed you smoke the longer it will stay in your system. Many factors contribute to a regular smoker trying to pass a drug test even after 2 weeks of abstinence. Metabolism, body fat and your overall fat reserves play a role. There is no hard scientific facts to conclude an exact time of abstinence for anyone who is a regular cannabis smoker.

There is no proven formula that will tell a regular cannabis user how long marijuana will stay in their system.

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