How long will a chemical/drug clears out from the body?

[Battousai001]

I would like to ask how long will a chemical/drug clears out or be totally eliminated from the body? I have read that it usually takes five half-lives of a drug before it gets eliminated out of the the body, is this true? but what if somebody is taking the drug for long periods like months is the computation of five half-lives for each dose taken still applies?

 

[minendo]

Depends on the drug and the testing method.

 

[Battousai001]

Thanks for the reply, how about for those medicines that are taken orally, like usual prescription drugs.

 

[xanis]

Here's a link that you may find useful:

http://www.homedrugtestingkit....drug_info.html#howlong

 

[BoomerD]

IIRC, pot is the only one that will remain in the system at testable levels for more than a few days, presuming it's a standard urinalysis. If they go to the more advanced tests, they can detect smaller amounts for longer periods of time.

(good link Xanis)

 

[Agentbolt]

Hair analysis stays detectable for 6 months for pot, 2 months for opiates, if you believe my employer.

 

[Mr Pickles]

You're screwed kid.

 

[BrownTown]

Just theoretically speaking the drug NEVER fully leaves your system, even after 5 half lives there is still 1/32 as much as you started with. So its gonna take a long time before every single molecule is gone, but if you are talking about drug testing then you can look it up in a dozen places, its all a factor of the half life of the drug, and the accuracy of the test being used. Apparently with hair you can get many drugs for up to 90 days, but most employers use urine samples which are usually only a few days for most things, and a few weeks for pot.

 

[irishScott]

Yet another reason to not do drugs.

 

[compman25]

Just ask Zane

 

[Nitemare]

wwzjd?

 

[Battousai001]

Thanks for all the replies. I was quite surprised on the answers as the replies assumed the drugs I was talking about are illegal drugs, actually the drugs/medicine I was talking about are legal prescription drugs. But again thanks for the replies, those were interesting and I learned some new things like hair samples can contain traces of drugs.

 

[ric1287]

why would you care if legal prescription drugs are in your system?

 

[Sinsear]

Originally posted by: ric1287
why would you care if legal prescription drugs are in your system?

I'm assuming they weren't his prescription.

 

[BUTCH1]

Originally posted by: compman25
Just ask Zane

LOL!!...

 

[zinfamous]

TTIWWZaneJohnson

 

[Battousai001]

Originally posted by: ric1287
why would you care if legal prescription drugs are in your system?

Actually some people who knows some things about medicines like half-lives will care specially when they are in the stage of stopping the medicine and or switching to other medicine or for those people who really don't like to have drugs in their body.

 

[Bill Brasky]

Most prescription drugs will be gone in a week, but it varies. Adderall and amphetamine salt based drugs are gone in three days. Pain killers and what not are about the same.

 

[thomsbrain]

you're not going to get the job and/or you are going to jail.

 

[zanejohnson]

amphetamines are usually 3 days or so detectable in urine...

most opiates are the same, heroin is gone the quickest, dolophine (methadone) takes the longest,

heroin can be undetectable in urine in as little as two days, while dolophine can be detected up to two weeks after use has stopped.

it's funny how the hard drugs are out so quick, when harmless drugs like pot can stay for up to 4 months if your a very heavy user. i have a friend who was a very heavy pot smoker, i mean like a joint every hour or so, sometimes up to 10-15 joints a day, when he had to quit he actually had withdrawal symptoms that were alot like opiate withdrawal, i myself have never been a HEAVY pot user, at my heaviest times i would smoke 3 or 4 joints in a day, and i never had physical withdrawal, there were definitely psychological withdrawal, but other than some hot and cold flashes it wasnt physical at all... opiates have terrible physical withdrawal symptoms as well as psychological....

anyway, back to what i was saying, my friend who was the heavy user tested positive for four months straight on the urine tests you can buy at pretty much any pharmacy...and he wasnt cheating...

 

[Gothgar]

Originally posted by: zanejohnson
amphetamines are usually 3 days or so detectable in urine...

most opiates are the same, heroin is gone the quickest, dolophine (methadone) takes the longest,

heroin can be undetectable in urine in as little as two days, while dolophine can be detected up to two weeks after use has stopped.

hooray, you made it!!!

this thread is offically no longer worthless... I think, maybe...

 

[illusion88]

We can't give the OP the answer he is looking for because he can't tell us what substance he is interested about.

 

[zanejohnson]

Originally posted by: Gothgar

Originally posted by: zanejohnson
amphetamines are usually 3 days or so detectable in urine...

most opiates are the same, heroin is gone the quickest, dolophine (methadone) takes the longest,

heroin can be undetectable in urine in as little as two days, while dolophine can be detected up to two weeks after use has stopped.

hooray, you made it!!!

this thread is offically no longer worthless... I think, maybe...

yep im here with my phd in street drugology lol

 

[Babbles]

Originally posted by: zanejohnson

it's funny how the hard drugs are out so quick, when harmless drugs like pot can stay for up to 4 months if your a very heavy user. i have a friend who was a very heavy pot smoker, i mean like a joint every hour or so, sometimes up to 10-15 joints a day, when he had to quit he actually had withdrawal symptoms that were alot like opiate withdrawal, i myself have never been a HEAVY pot user, at my heaviest times i would smoke 3 or 4 joints in a day, and i never had physical withdrawal, there were definitely psychological withdrawal, but other than some hot and cold flashes it wasnt physical at all... opiates have terrible physical withdrawal symptoms as well as psychological....

Just wanted to point out that a drug is not harmless if it gives you physical and/or psychological withdrawal issues. Additionally current clinical research, most of it done in Europe and Australia, point to some very serious harmful consequences of smoking pot.

It appears that the chart previously linked is probably pretty accurate. One comment I would add is that based on some material I came across in the past, that very heavy pot users can have it in their system for months after quitting; probably talking more about those that have been smoking since the first Woodstock, though. The half-life of a drug, though, is not the only factor. A lot of the pharmacokinetics will depend on lipid solubility, metabolism, and will likely follow a quadratic curve.

 

[lightstar]

just say no