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Tetrahydrocannabinol or THC can stay in a persons system from 2 to up to 90 days depending on several variables such as height, weight, physical fitness and substance usage. Occasional users would be clean within one week, a daily user can take up to one month, and a constant user can take up to almost 3 months.

According to the website of Columbia University's Health Services:

Marijuana itself does not "stay" in your system, but the main chemical in marijuana, THC, does. In fact, it may stay in your system forever because it is stored in fatty tissues of various organs.

Despite being stored in body fat, THC is onlydetectable for a certain amount of time. There are many variables that determine how long THC will remain detectable in your system, including amount used, frequency, metabolism, and the concentration of the plant. Many drug tests, including urine tests, look for 9-carboxy-THC which is the by-product of your body metabolizing the THC in your fat.

Marijuana Detection Times:

Frequent users blood drug test (defined as someone who smokes several times per week)

THC: 4-8 hours after smoking.

THC by-product: 2 or more weeks after smoking.

Frequent users urine drug test

THC by-product: 2 weeks to a month after smoking (3 months for extremely heavy users)

Infrequent users blood drug test

THC: 3-4 hours after smoking

THC by-product: 2-3 days after smoking.

Infrequent users urine drug test

THC by-product: up to 10 days after smoking.

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โˆ™ 2016-04-08 09:54:51
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Q: How long does marijuana stay in your system?
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Related Questions

How long does marijuana stay in your system for an infrequent user?

Marijuana stays in your system for 30 days!!


How long to marijuana stay in your system?

For as long as you smoke dope.


How long do marijuana stay in your system for the drug test?

Marijuana can stay in a person system for up to 3 months and be detected in your system on a drug test.


How long does marijuana stay in a toddlers system?

for about a hour


How long does marijuana stay in your system for a swap test?

it stay in your system for only one day


How long does marijuana stay in your system if you smoke 4 hits a day?

Marijuana goes directly out of your system after you smoke it


How long does marijuana stay in a pets system?

Depends on how it was administered.


How long does eating marijuana stay your system?

30 days.


How long can marijuana stay in your system for a swab test?

6mo.


How long does marijuana stay in your system if your not a regular user?

If you are Not a regular user Marijuana can still stay in your system for up to Ten Days its 6 weeks numb nut


How long does two puffs of marijuana stay in your system?

Two puffs will be in your system for about a week


What if you are a first time user of marijuana how long will it stay in your system?

It stays in your system for about a month.


How long does marijuana stay in your system if you weigh 160?

1 week


How long does marijuana stay in your system after you stop smokin?

it staays in for a month.


How long can one puff of marijuana stay in your system?

43 days.


How long does marijuana stay in your system if it was your first time?

Three weeks


How long does marijuana stay in your system if you have you have a high matabulism?

about 5 minutes


How long does marijuana stay in system if smoked twice a day?

42days


How long does marijuana stay in your system for if you smoke irregularly?

Thirty Days


How long do the effects of marijuana stay in a cats system?

10 hours


How long does marijuana stay in your system from second hand smoke?

2weeks


How long does marijuana stay in your system if you smoke every weekend?

It can stay your system for up to 30 days after your last smoke.


How long does marijuana stay in your system when ingested?

Well, the remains stay in your system for 14 days. Otherwise till you sh1t it out.


How long does marijuana stay in the system if you only hold the smoke in your mouth?

As long as you held it in your mouth


How long does cannabis stay in your blood?

Marijuana stays in your system for about 48 hours.