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How long does marijuana come from the body? Information is primarily for parents!

Как долго марихуана выводится из организма?

Hemp (Latin Cannabis) is a genus of annual bast fiber plants of the Cannabaceae family. Earlier, as the classification was changed, hemp was referred to as silk, mulberry and nettle. It includes one polymorphic species - Cannabis sativa L. (Hemp sowing), previously divided into several species:

  • Cannabis indica Lam. - Hemp Indian, sometimes classified as Cannabis sativa subsp. indica
  • Cannabis sativa subsp. sativa
  • Cannabis ruderalis Janisch. - Cannabis weed

Marijuana (marijuana, marihuana), the official name of cannabis is a psychoactive substance derived from cannabis. The impact on the human body is associated with the substances contained in cannabis (cannabinoids), the most effective of which is delta-9-tetrahydrocannabinol. Specialists distinguish three main types of cannabis: Cannabis sativa, Cannabis indica and Cannabis ruderalis, the latter containing the least amount of tetrahydrocannabinol.

To denote psychoactive substances derived from cannabis, it is often used transliteration from its Latin name - cannabis . In English, cannabis is traditionally called psychotropic cannabis, used in medicine, and hemp is the corresponding agricultural crop. The Single Convention on Narcotic Drugs of the United Nations in 1961 includes cannabis in the list of narcotic plants and obliges the governments of the member countries to strictly control its cultivation.

Smoking cannabis - inhaling the smoke of cannabis (cannabis) to obtain a specific intoxicating effect due to exposure to the body of cannabinoids contained in hemp, cannabinoids (the main one is THC, tetrahydrocannabinol). Smoking is the most common way of using cannabis drugs. Smoking cannabis is considered a traditional attribute of various youth subcultures, used in some ritual and ritual actions. It is also used for medical purposes. Cannabis use is prohibited in many countries.

How much marijuana lingers in the body depends on the consumer, as well as the frequency of use. There are other factors that influence, for example, how the test is conducted.

THC lasts the longest in the hair follicle, in the saliva it can be found the shortest period of time. Other factors include metabolic rate.

Typically, that's how long marijuana remains in the body:

Timing of detection of THC in urine (with smoking)

Once 5-8 days
2-4 times a month 11-18 days
2-4 times a week 23-35 days
5-6 times a month 33-48 days
everyday 49-63 days

Tab. 1

The most common test for TGC is urine analysis - because it is the cheapest and has a long detection period. However, the detection period will depend on the frequency of consumption because of the cumulative effect of THC (the effect of accumulation of concentration in the body).

  • Having smoked once , the test for TGC will be positive up to 8 days.
  • With frequent smoking, the test will show the presence of THC within 15 days.
  • THC may be delayed up to 30 days in the urine of a densely smoking consumer.
  • The test will be positive until 45-90 days , if you smoke daily several times a day

The timing of the detection of THC in the saliva

Как долго марихуана выводится из организма?

The least THC is retained in saliva. This method is most often used by the traffic police, if there is a suspicion that the driver is smoked. The test will be positive one hour after ingestion, and also within 12 hours.

The timing of detection of THC in hair

Как долго марихуана выводится из организма?

In the hair follicles of THC, the longest period of time is delayed. The test will be positive for 7 days in case of a single use, most of such tests can reveal THC within 90 days in case of systematic use. However, this method is not reliable, so it is almost never used.

Timing of detection of THC in the blood

Как долго марихуана выводится из организма?

THC is almost never measured in blood, as its metabolite is not retained for a long time. As a result, the blood test for the presence of cannabis in it shows only recent use.

How to pass a urine test on TGC

Как долго марихуана выводится из организма?

Unfortunately, there is no reliable way to pass a urine test, if you are an avid smoker. There are drugs that contribute to the purification of urine, but their reliability is in question.

The most effective approach to passing a test of urine to THC is to drink a lot of cranberry juice or a lot of liquid. Consuming a lot of water will naturally dilute everything that is in your urine.

The most reliable way to pass the test is to follow the recommendations on time (Table 1)

How long do other chemicals leave the body?

In continuation of the topic, it will be interesting to pay attention to how long other chemical compounds are retained in the body:

  • Heroin can be detected in the blood and saliva up to 12 hours after ingestion, and in urine up to three days.
  • Amphetamines can be detected within 12 hours in the blood and saliva, in urine 1-2 days after ingestion.
  • Alcohol (one standard dose - 0.5 liter low alcohol / 200 g wine / 50 grams strong) can be detected in the body for 5 hours (the more it is used, the longer it is absorbed and removed from the body).

Lately, many employers have been checking their employees for drugs. However, if you have problems with amphetamine, getting out of the water is easier than with regular use of marijuana. Cannabis is in the body longer than almost all other chemical compounds, due to the cumulative effect. However, everyone knows that you will not necessarily be stoned for 12 hours after consumption. Smokers are afraid of a fairly common urine test, it is worth getting a job, which does not require passing this test.


The active component of marijuana - tetrahydrocannabinol (THC) - is captured in the body with fat tissue. And since THC is secreted from fat cells slowly, its psychoactive effect can last for days and weeks after taking the drug. Long-term preservation of THC in the body damages internal organs containing a large amount of fat, especially the brain. "THC molecules are very mobile, they penetrate the lipid membrane of the cell membrane into its core, disrupting the chemical process of cell division." "Cannabinoids accumulate to fat cells, and a brain weighing three pounds to one-third consists of fat ... Therefore, in the brain of a chronic smoker marijuana, millions of ... axons are constantly surrounded by THC." "Cannabinoids that dissolve only in fats., Accumulate in the tissues of the body ... Anyone who uses marijuana more than once a week ... can not be free of the drug." "Even people who use marijuana only once a month continuously put their brains, lungs, liver and other vital organs into the poisonous effect of TGC."


Many active drugs and medicinal substances penetrate the fat cells of the body. The difference, but not the unique property of THC, is that it leaves the fat cells slowly. As a result, traces of marijuana can be found in the body after days and weeks after ingestion. But a few hours after smoking marijuana, the THC content in the brain falls below the concentration necessary for a noticeable psychoactive effect. Fat cells in which THC is delayed are not damaged in the presence of the drug, as well as the brain and other organs. The most important consequence of the slow removal of marijuana is that it can be found in the blood, urine and tissues many days after use and much later than the end of the psychoactive effect of marijuana.

THC, like many other psychotropic substances, undergoes processing in the body. After THC enters the bloodstream, most often from the lungs in the process of smoking, a small part of it (about 1% of the accepted dose) enters the brain, where it binds to specific receptors. If the amount of the drug in the brain exceeds the threshold dose, its psychoactive effect is manifested. The maximum of the action is usually noted after 15-30 minutes. after the beginning of smoking.

Simultaneously with the admission to the brain, THC is distributed to all other parts of the body. In the process, the concentration of THC in the blood drops, which reduces the amount of drug available for binding to the receptors of the brain. Within 2-4 hours, the THC level in the brain usually falls below the level required for psychoactive action. As shown in Fig. 16-1, if the concentration of THC is reduced to 2-25 ng / ml, psychoactive effects are usually traced.

Many drugs, including THC, are fat-soluble. This allows them to easily penetrate the cells throughout the body, dissolving in cell membranes, which are mainly composed of lipids (fats). Drugs quickly leave most cells - either in their original form or after biotransformation in a cell - in the form of water-soluble metabolites. After re-entering the bloodstream, drugs can undergo further biotransformation, especially during passage through the liver. As a result, the entire drug and its metabolites are excreted from the body with sweat, excrement and urine.

Как долго марихуана выводится из организма?
A typical picture of the disappearance of the effect after a single smoking of marijuana

THC enters most cells in the body and leaves them at about the same rate as other psychoactive substances. Nevertheless, some features of THC, and especially its high solubility in fats, slow its release from fat cells. THC does not specifically select fat. Like many other medicinal substances, for example, valium, pentothal and torazine, THC is slowly released from fat cells. Since in the fat cells the biotransformation is weak or does not occur at all, a certain amount of active THC re-enters the bloodstream. However, THC isolated from fat cells is too small to have a psychoactive effect. In fact, none of the effects of marijuana lasts more than a few hours. A number of researchers reported weak effects of marijuana that persist for up to 24 hours. At the same time, in dozens of other studies in the evaluation of psychomotor activity and intellectual activity, it was found that all the effects of marijuana disappear within a few hours after smoking.

Even in frequent users of marijuana, the THC content in the blood drops below the psychoactive level a few hours after a single smoking. Fig. 16-2 shows the concentration of the drug in the blood with repeated smoking for 36 hours. A certain amount of THC from previous consumption is mixed in blood with THC from a new intake. However, the amount of the drug released from the fat cells is too small to produce a significant effect. As a result, those who smoke rarely, and those who smoke often, the psychoactive effect of marijuana lasts only a few hours. If people smoke marijuana more often than shown in Fig. 16-2 (eg, every hour), the THC level in the blood and brain will be higher, but in this case those small amounts of previously accepted THC that are constantly released into the bloodstream from the fat cells will not significantly affect the level of intoxication.

Как долго марихуана выводится из организма?
A typical picture of the disappearance of the effect with repeated smoking of marijuana

After smoking marijuana, THC remains in adipose tissue for a long time, but in fat cells there are no THC receptors, and, apparently, therefore, the presence of a drug in adipose tissue does not lead to any consequences. The brain is not at all an organ of particularly rich fat, despite frequent statements to this effect, and THC does not accumulate there. Small amounts of THC accumulate in some other organs, but there is no evidence that it changes the functions of cells or causes structural damage to them.

Ultimately, THC is biotransformed into inactive metabolites, but as it slowly leaves adipose tissue, moving to its biotransformation sites, days and weeks can pass until the drug and its metabolites are completely eliminated. As a consequence, drug testing at the workplace and other types of checks can identify marijuana users long after the drug has been consumed and much later than the end of its psychoactive effect.

Via & wiki

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Any drug is the strongest poison that destroys the entire body. Damage caused by taking drugs is irreversible. Drugs affect primarily the nervous system and the brain.

As a result of the impact of drugs, the intellectual abilities of a person decrease, and it gradually becomes stupid, reaching idiocy. Changes in the brain under the influence of the drug can be compared with schizophrenia. Therefore, it will be absolutely fair to agree with the statement that drug addiction is voluntary madness.

Changing and the nature of man. He becomes listless, apathetic and withdrawn. He is not interested in anything. Friends can not stand long in his company and in the end turn away from him. The brain and psyche of a person change irreversibly. They are not completely restored, even with a timely refusal of the drug.

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