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Drug testing What can you do against drug testing & more...

 
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  #1  
Old 29-11-2009, 18:27
Pickpoke Pickpoke is offline
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Visine causing a false negative for pot?

swim knows that visine can trigger a false negative for thc, but does any swim know how reliable this is? and how many drops would be good?

Last edited by Pickpoke; 02-12-2009 at 00:22.
  #2  
Old 29-11-2009, 19:46
Potter Potter is offline
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Re: Visine Need help quick!!

WHAT???? Did the friend who told you that also claim he has a friend who did a sheet of acid and now thinks he's a glass of orange juice and lives in an institution?

Totally false. Period. Eyedrops do NOT make you test positive for THC.
  #3  
Old 29-11-2009, 19:57
RaverHippie Gold member RaverHippie is offline
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Re: Visine Need help quick!!

I think his intention was to use visine in the urine solution to pass clean...

which is even more BS.
  #4  
Old 29-11-2009, 20:14
psyche psyche is offline
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Re: Visine Need help quick!!

It's not bullshit, it just sounds unbelievable.

Erowid has this to say:

Quote:
Originally Posted by Erowid
I posted a message the other day about using VISINE to cause false-negative
POT PISS-TESTS. Well, I came down this morning and found that I was under a
viaduct right near the university library, so I cleaned myself off a bit in
nearby FOUNTAIN and ambled in for some further research. Here is a review
of two articles concerning false-negatives through SPECIMEN alteration with
EYE-DROPS and a bit of speculation about how to use this information.

Please respond with COMMENTS or CRITICISMS.

|--########>-- H-Man --<########--|

[1] "Adulterants Causing False Negative in Illicit Drug Testing"
Clinical Chemistry, Nov 1988, Volume 34, Number 11, p 2333-2336.
Stephen L. Mikkelsen and K. Owen Ash

[2] "Mechanism of False-Negative Urine Cannabinoid Immunoassay Screens by
Visine Eyedrops"
Clinical Chemistry, Apr 1989, Volume 35, Number 4, p. 636-638.
Stephen D. Pearson, K. Owen Ash, and Francis M. Urry

[1] describes the effects of 8 different urine-additives (table salt,
Visine, handsoap, Drano, bleach, vinegar, goldenseal tea, and lemon juice)
on the outcome of various drug tests. Every effective additive except
Visine leaves an easily detected telltale sign: Drano, bleach and vinegar
change the specimen's pH outside the normal range; goldenseal tea causes
the specimen to turn brown; soap causes the specimen to become cloudy; and
table salt forces the sample's relative density out of the normal range.
Lemon juice did not affect the tests. The abstract notes: "Visine was the
only adulterant not detected." [2] says that Visine does slightly reduce
the urine sample's abaility to foam.

Visine caused false negatives (EMIT d.a.u. assays) in the tests for
benzodiazepines and marijuana, but did not change the test results for
amphetamines, barbituates, cocaine, or opiates. 125 mL / L was the amount
of Visine used per amount of urine specimen with 122 ug / L of
9-carboxy-THC in the sample.

[2] focuses on the use of Visine to prevent pot metabolite detection. Here
is a table summarizing the effectiveness of varying concentrations of
Visine:

Visine concentration (mL / L) : 0 10 20 50 100 200 300
Apparent 9-carboxy-THC concentration (ug / L) : 100 52 43 47 35 85 87

(Note the positive test cutoff value is 50 ug / L 9-carboxy-THC).

The interesting thing to observe is the effectiveness of Visine as THC
metabolite masker decreases as its concentration goes up past a certain
point. The same pattern occured with the TDx and Abuscreen assays (the TDx
assay generated false negatives, but the Abuscreen assay's apparent
metabolite value fell only to 52 ug / L). The lesson to be learned is the
optimum amount of Visine to use is around 100 mL / L.


The ingredients of Visine responsible for the blocking of the THC test are
given as benzalkonium chloride (a preservative) and the borate buffer. The
mechanisms of the borate buffer were not discussed, but "reduced
availability of 9-carboxy-THC in urine samples adulterated with Visine is
due in part to uptake of 9-carboxy-THC into benzalkonium chloride micelles."

To use this information to your advantage, figure that the standard urine
specimen is 60 mL. At 100 mL / L Visine recommended, this means 6 mL of
Visine would cut the observed 9-carboxy-THC almost two-thirds.
Visine comes
in 15 mL and 30 mL bottles. For advice on how to add the adulterant, read
Abbie Hoffman's book on piss-testing, _Steal this Urine Test_. Use of other
methods (such as diluting your urine by frequent water drinking) should be
researched. Adding adulterants can be risky and should be seen as a
last-ditch effort if you're caught with your pants down, so to speak.
-------------------------------------------------------------------------
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================================================== ===========================

(Alan B. Combs)
Newsgroups: alt.drugs
Subject: Re: VISINE to beat POT PISS-TESTS pt. 2
Date: 24 Aug 1993 02:37:04 GMT
Message-ID:

>
> The ingredients of Visine responsible for the blocking of the THC test are
> given as benzalkonium chloride (a preservative) and the borate buffer. The
> mechanisms of the borate buffer were not discussed, but "reduced
> availability of 9-carboxy-THC in urine samples adulterated with Visine is
> due in part to uptake of 9-carboxy-THC into benzalkonium chloride micelles."
>

If this is the mechanism and it becomes established, there probably would
be a street market for Zephirin aqueous. It comes highly concentrated, and
it is used as an antiseptic/surgical scrub, etc. The concentrate would
have
to be diluted appropriately. There are several less concentrated alcoholic
sprays and tinctures. I suspect the alcohol would be quickly detected,
however.

There are a couple of conflicting reports of success and failure in the erowid experiences. Here is one success in our own boards.

Post Quality Evaluations:
Great info answered a lot of my questions!!
For having the balls to research somethign so crazy sounding!

Last edited by Gradient; 09-03-2013 at 23:06.
  #5  
Old 29-11-2009, 20:49
Pickpoke Pickpoke is offline
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Re: Visine Need help quick!!

Quote:
Originally Posted by Potter View Post
WHAT???? Did the friend who told you that also claim he has a friend who did a sheet of acid and now thinks he's a glass of orange juice and lives in an institution?

Totally false. Period. Eyedrops do NOT make you test positive for THC.
first off i didnt say it made you test positive, i said it can cause a false NEGATIVE. Please understand what you read before you make a fool of yourself.

second off i know its true. i wasnt asking it was true or not, i just wanted some firsthand advice from people who have used this method.

Pickpoke added 1 Minutes and 12 Seconds later...

thanks for the info psyche very useful

Pickpoke added 6 Minutes and 29 Seconds later...

Heres another source that proves it works from our own forums:

Quote:
Clinton said that the lab he worked in tested Visine, and
concluded that Visine works every time as a false negative for the EMIT.
It can be detected due to inability of the sample to foam.
This was taken from the "HOW TO BEAT A DRUG TEST" topic, posted by BA

Post Quality Evaluations:
For bringing up useful information. Excellent topic here.

Last edited by Pickpoke; 29-11-2009 at 20:49. Reason: Automerged Doublepost
  #6  
Old 30-11-2009, 03:04
Potter Potter is offline
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Re: Visine Need help quick!!

Naw, that's hardly being foolish, I've been MUCH more foolish on the boards. I'm surprised how often I've gotten away with some of the dumb things I've said.

Come on, it sounds like a perfect urban legend, there's already lots of people who thing you can use visine to sober up from smoking reefers. You have to admit your post is a bit vague on the background.

But Damn! Good to know.

You should edit the title and give some more details in your post so people have an easier time finding this thread.
  #7  
Old 30-11-2009, 06:14
Pickpoke Pickpoke is offline
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Re: Visine Need help quick!!

Quote:
Originally Posted by Potter View Post
Naw, that's hardly being foolish, I've been MUCH more foolish on the boards. I'm surprised how often I've gotten away with some of the dumb things I've said.

Come on, it sounds like a perfect urban legend, there's already lots of people who thing you can use visine to sober up from smoking reefers. You have to admit your post is a bit vague on the background.

But Damn! Good to know.

You should edit the title and give some more details in your post so people have an easier time finding this thread.
i get what u mean, if someone told me this and i had no idea i'd be like wtf lol..yeah changing the title would probly benefit some others, ill do that.

Pickpoke added 1 Minutes and 49 Seconds later...

actually i think an admins gotta do that lol, or i just cant figure it out...

Last edited by Pickpoke; 30-11-2009 at 06:14. Reason: Automerged Doublepost
  #8  
Old 01-12-2009, 17:54
psyche psyche is offline
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Re: Visine causing a positive thc test?

^^ Edit the original post and click on 'Go Advanced' button below. There you are able to change the thread title. This information should be available to a lot more people.
  #9  
Old 01-12-2009, 18:33
pinksox pinksox is offline
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Re: Visine causing a positive thc test?

To be fair to Raver and Psyche, Swimmy has to say that the OP could have worded his initial post in a manner that more clearly expressed the notion he was attempting to convey. Especially when the title and intended topic are contradictory.

Words typed on a screen lack intonation and inflection and readers lose lose the meaning that an audience hearing one speak those words might have inferred. SWIm, herself, had to read the OP twice, to gain meaning or what she thought SWIY was getting at and further posts to confirm that.

Swimmy would say that short of being in a lab with accurate measuring devices and consistent samples the use of Visine to make a dirty test show clean is going to be highly chance at best...too little you get binged positive, too much you get binged positive. And, without testing before hand, how on earth is SWIY going to know prior to the test what they're actual current levels are...since the addition is somewhat dependent upon sample concentration? IF it were going to work, swimmy would fathom a guess it would be more successful on the insta-read type cup tests and not on a sample being sent for lab analysis...since it would must likely throw off things like specific gravity and albumin levels enough for the tech to flag the sample as abnormal or adulterated. And, in a drug test, they only thing that will get one in more trouble than pissing dirty is getting caught providing an adulterated sample.

If one has no other option then give it a go I guess. Personally, were swimmy in this situation, she would use methods more tried and true like abstaining(if you're not a frequent user) or substitution. Swimmy says this method would be like running across the freeway blindfolded. You might get lucky and make it once or even twice...but sooner or later, one is going to get creamed.

Swimmy also wants to point out that both these these studies cited as "examples of truth" are from the early 1990's when, yes, this was in fact true. She still would place her money that a user SIXTEEN years later is gonna get popped. This topic was pretty wide-spread news back then. I almost guarantee its no longer effective and would wager my paycheck on such if someone were to bet me, LOL.

I would be highly interested to see if anyone could find something a little less ancient on the matter. Drug testing has come a long, long way since 1993 when these studies were published.

Post Quality Evaluations:
Good points

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Tags
adulterants, drug, drug screen, drug test, drug testing, drug tests, eye drops, gbl, home drug test, interesting tidbit, piss test, thc, urine sample, urine test, visine

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