How Long Does Cannabis Remain in Your System?

While marijuana’s effects are short-lived, the drug can still be found in the body for a few weeks or even longer. Depending on how frequently or how much marijuana was used, the active components and breakdown products of marijuana can stay in the body for anywhere from a few hours and 90 days.

For instance, according to the type of test utilized, a single dose of marijuana may be detected in your system for up to 13 days. Marijuana will exit your system more rapidly if you use it sparingly or infrequently rather than regularly or heavily.

Although recreational marijuana use for adults over 21 is legal in 12 states, Washington, DC, the Northern Mariana Islands, and Guam, and there are a number of states with active medical marijuana legislation, the federal government still lists marijuana as a Schedule I restricted substance.

What Time Does Marijuana Stay in Your System?

Blood: Several hours

Urine: 13 (for occasional use) to 90 (for frequent use) days

Saliva: A few hours or more

Hair: 90 days or more

how long does cannabis stay in your system

Also: Marijuana Withdrawal Symptoms: What You Need to Know

When Will I Start Feeling the Effects?

Marijuana’s effects can differ from person to person. While some people could feel happy and at ease, others would feel uneasy and suspicious. Other times, people describe feeling “dopey,” losing interest in tasks, or having trouble understanding concepts.

Tetrahydrocannabinol, also known as delta-9-THC or just THC, is the substance in marijuana that causes you to feel “high.” It quickly enters the bloodstream after marijuana use.

The time it takes for marijuana to enter the bloodstream after oral ingestion, as opposed to smoking, ranges from 20 minutes to an hour and a half, though this can change depending on how much is consumed and other physiological factors such as absorption rates, rates of metabolism, and rates of excretion can affect drug concentrations in circulation.

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Depending on The Strain, Mode of Ingestion, and Dosage, Effects Can Range Widely and Include the Following:

  • Dry mouth
  • Swollen eyelids
  • Bloodshot eyes
  • Pleasurable body sensations
  • The increased appetite (“the munchies”)
  • Relaxation
  • Stimulation
  • Distorted perception¬†(sights, sounds, time, touch)
  • Loss of coordination
  • The trouble with thinking, memory, and problem-solving
  • Increased heart rate

How to Clean Your System of Marijuana

Many organizations have a workplace drug policy that involves routine testing for all new job candidates as well as random testing for current employees.

If you have just smoked marijuana and are forced to submit to a urine test for employment or other reasons, you will probably fail the test. This is especially accurate if you use it frequently or heavily.

Stopping the use of marijuana or cannabis products in any form, including smoking or eating it, is the only surefire way to pass the test.

Although there are many suggestions on how to pass a marijuana drug test, most of them have been disproven. These are only a few of the problematic methods.

Cleaning up Your System

This technique requires consuming a lot of drinks and urinating frequently prior to the test, then taking vitamin B-12 to restore the color of the urine. This may reduce the amount of THC in the urine by diluting it, but it won’t completely remove THC metabolites.

Research published in the journal Drug and Alcohol Dependence found that some people will also try to exercise before the test, but it can actually backfire depending on the test since it can release stored THC from fat into the blood.

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Utilizing Drug-Screening Tools

Some businesses purport to be able to “clean” the body’s system of all traces of marijuana by selling various chemicals and herbal teas. There is not much proof that any of them are effective. The drawback is that most of them require prolonged use, at which time the body will naturally rid itself of THC.

how long does cannabis stay in your system

Also: Cannabis Oil: Health Benefits of Cannabis Oil, Uses and Its Side Effects

Manipulating the Test

To contaminate the sample, something must be added to the pee. There are rumors that urine samples have been contaminated with Visine, bleach, salt, or detergent, but the lab can easily detect these substances.

Signs of An Overdose

Because the deadly dose of marijuana is so much higher than the effective dose, it is exceedingly difficult to physically overdose on it. Overdoses caused by marijuana have never been widely reported. An overdose is extremely improbable if someone you know only used marijuana when they abused it, but this does not mean that marijuana is safe. 7

Both psychological anguish and judgmental impairment are conceivable, and both can cause risky behaviors that can be harmful to both you and other people. THC poisoning is a rare side effect of marijuana use, especially when consumed in large amounts as sweets. Some symptoms include:

Heart Irregularities

Paranoia or psychosis (or exacerbation of pre-existing mental health conditions)


irrational vomiting

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