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Warning to Cocaine Users: Cocaine with levamisole is DANGEROUS!

severely etarded

Bluelight Crew
Joined
Jul 5, 2009
Messages
7,710
A VERY large percentage of cocaine worldwide at the moment contains levamisole, even if it's not very much. Levamisole severely weakens your immune system and makes you susceptable to illness and disease. It is an antibiotic/animal dewormer, and has many negative side effects. The worst part is that many medical professionals are not trained to know levamisole is in the cocaine, and do not realize that may be causing the symptoms when people go to the ER.

One of my friends who has been doing coke daily for years got leukemia, and the drug affects bone marrow and key white blood cells. The worst part is I'm watching him kill himself, he has bruising from toxicity and he still wont quit. The shit is bad, and absolutely unbelievably horrible for anyone who is addicted or a regular user.

Why can't the US just END THE WAR ON DRUGS? IT'S SO SIMPLE !!!! :!

No more cocaine cut with this toxic bullshit.

You can read more here:
http://www.erowid.org/chemicals/cocaine/cocaine_article2.shtml

NSFW:
Cocaine Adulterated with Levamisole on the RiseStatus as of September 2009
by the Erowid Crew
Oct 1, 2009
Citation: Erowid Crew. "Cocaine Adulterated with Levamisole on the Rise: Status as of September 2009" Erowid.org. Oct 1, 2009. http://www.erowid.org/cocaine/cocaine_article2.shtml
It has long been a practice, particularly among street-level dealers, to "cut" cocaine with diluents in order to increase profits. In the past, cuts have commonly been fairly innocuous materials, such as lactose, mannitol, or niacinamide, chosen because they match the appearance of cocaine, or chemicals such as benzocaine, lidocaine, or procaine, chosen because they cause a localized numbing effect similar to that produced by cocaine. However, in recent years there has been an upsurge in the use of more pharmacologically active chemicals as cocaine adulterants, including compounds such as acetaminophen, atropine, caffeine, hydroxyzine, methylephedrine, diltiazem, methylphenidate (Ritalin), and phenacetin.[DEA microgram 2004] [Vroegop 2009] [Elias 2007] One of the more concerning adulterants that has become increasingly prevalent over the last few years is levamisole, a pharmaceutical veterinary dewormer and a research immunomodulator.

Levamisole is Not New
Although levamisole has been a known adulterant in cocaine since at least 2002,[SAMHSA 2009] on September 21, 2009, the U.S. Substance Abuse and Mental Health Services Administration (SAMHSA) made the surprising announcement that levamisole had been found in "over 70 percent of the illicit cocaine analyzed [by the DEA] in July. In addition, a recent analysis in Seattle, Washington found that almost 80 percent of the individuals who test positive for cocaine also test positive for levamisole."[SAMHSA 2009]


Following the SAMHSA alert, the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) also sent out an email alert, which claimed that levamisole was found in over 50% of cocaine samples tested in the United Kingdom and the Netherlands during a period in 2009.[Ventura 2009] Previous reports by the DEA and testing conducted by a number of other organizations had shown levamisole present in cocaine, but in a much smaller percentage of tested samples than reported by the DEA in August/September 2009. For example, in October 2008, the DEA reported detecting levamisole in 30% of the bricks of cocaine that they analyzed,[DEA Microgram Oct 2008] and Health Canada reported 11% of cocaine samples from April to December 2008 were contaminated with levamisole.[Zhu 2009]


Levamisole Media Blitz
Beginning in late August 2009, a surge of media stories warned about negative health effects and deaths associated with levamisole as a cocaine adulterant, with Google News showing 606 stories in September alone. The death of a popular DJ and Los Angeles club owner, Adam Goldstein "DJ AM", in late August kept the issue in the news because autopsy-related forensic toxicology results included levamisole among a long list of other drugs detected.


Levamisole Health Risks
As a cocaine adulterant, levamisole is dangerous primarily because it suppresses the immune system of those who are exposed to it. It is also possible that levamisole interacts with cocaine's stimulant effects and increases acute cardiovascular toxicity, though this is still speculation based on levamisole metabolites (such as aminorex) that have been found to occur in horses. Such metabolites have not been confirmed in humans.

Though it has been used therapeutically in humans for decades, levamisole can cause agranulocytosis (acute neutropenia), a blood disorder characterized by the disappearance of certain types of white blood cells necessary for the proper functioning of the immune system. Agranulocytosis/neutropenia can result in a wide range of problems associated with a weakened immune system including infections throughout the body, high fever, chills, swollen glands, painful sores, and wounds that don't heal. Left untreated, the condition can result in death. Agranulocytosis can be treated if detected and diagnosed properly.

Because the symptoms of agranulocytosis can be so wide-ranging, because it is an unusual condition, and because levamisole contamination of cocaine is a relatively new problem, it is essential that those seeking medical care for a condition like high fever be honest with their health care providers about the illicit substances they have taken, in order to improve their chances of being diagnosed properly and recovering quickly.

It is likely that people whose immune systems are already compromised by disease or genetic background are more susceptible to the risk of agranulocytosis from levamisole exposure.


Diagnosis and Detection Difficulties
Levamisole's half-life in blood plasma is short, less than six hours, but its immune suppression can last much longer. This makes it difficult to positively diagnose that a patient's agranulocytosis is a result of levamisole exposure, as blood or urine tests may come back negative for levamisole even when immune suppression has resulted from levamisole ingestion. Medical centers are currently forced to rule out other causes of immune problems such as HIV (AIDS), leukemias, and parvovirus. If the patient admits to cocaine use or has used cocaine recently enough that levamisole is still present in their blood or urine, some tests for unlikely conditions may be avoided.[Babu 2009]

As of Oct 1, 2009, there is no nationwide data on the number of cases of levamisole poisoning. Many health care providers are unaware of the problem, though poison control centers and the U.S. Centers for Disease Control are currently on the lookout for new cases.


General Contaminant Problems
For most pharmacologically active adulterants, the potential risks related to interactions with cocaine (and/or with each other) are unknown. Additionally, none of those compounds--when used medicinally in humans--are insufflated or smoked, and there may be increased risks based on such routes of consumption. A paper by Brunt et al. in 2009 analyzed data about street cocaine use in the Netherlands and found that "Adulterated cocaine was associated more frequently with reported adverse effects than unadulterated cocaine."[Brunt et al. 2009]

Unfortunately, the nature of black market substances makes it difficult or impossible to be sure that any sample of street cocaine is free from adulterants.

The DEA's message is simply "Don't use cocaine; it's a dangerous drug",[Knierim, 2009] a position criticized by those who see drug prohibition as the cause of the difficulties, similar to the problems associated with contaminated and low-quality alcohol during the U.S. alcohol Prohibition of the 1920s.[Sullum 2009]


Levamisole Background Information
Levamisole is an antihelminthic (dewormer, anti-parasitic) used in large livestock and aquarium fish. Levamisole is also an antineoplastic (a drug that inhibits abnormal cell growth that can produce potentially malignant tumors) used in the treatment of colo-rectal cancer in humans. However, this use has been discontinued in the United States and many other countries. It acts on the central and peripheral nervous systems, and has cholinesterase inhibitory properties. Side effects from therapeutic doses of levamisole include nausea, diarrhea, dermatitis, taste perversion, fatigue, vomiting, arthralgia, infection, leucopenia,[PDR 1998] and much more rarely agranulocytosis.


Why Adulterate with Levamisole?
According to the DEA, levamisole--as well as other adulterants--is apparently present in some shipments of cocaine intercepted before they are broken up for further distribution to consumers. Considering that, in one batch, only 6% by weight of the total product sold as cocaine was levamisole, it seems possible it is more than simply a bulking agent. One theory is that levamisole or other adulterants boost the effects of cocaine, permitting material to pass for higher-quality product despite additional cuts made down the line. Another theory is that levamisole or other adulterants are added as chemical signatures used to track distribution of material.[Fucci 2007] It may be that levamisole has been used because it has similar solubility properties to cocaine and therefore is difficult to remove and has not previously been considered a serious health hazard. As of October 1, 2009, there is no definitive answer as to why it is used as a cocaine adulterant.


Can You Tell if Cocaine is Contaminated with Levamisole?
Unfortunately, there is no currently available easy, on-site test to determine if street cocaine is adulterated with levamisole. DanceSafe.org has indicated that they are working on a field test that can be used, but it is not yet available. Thin Layer Chromatography (TLC) could be used by trained individuals to check for contaminants, but requires the use of lab standards and is therefore impractical for the general public.

As of September 2009, EcstasyData.org is accepting submissions of cocaine samples in capsules, which will be analyzed by a lab that can identify levamisole. Testing costs $120 per submitted sample, which must be paid by the submitter. Unfortunately, the DEA currently restricts testing and does not allow the lab to quantify the amount of contaminants in street drugs. So far, EcstasyData has received one cocaine sample, sent from Butte, Montana, which was found to contain levamisole.


Where has Levamisole Been Found?
Data from the following countries is not inclusive of all levamisole findings, but represents a brief survey of information available showing how widespread levamisole-tainted cocaine is.

AUSTRALIA # -- From 70 seizures, 59% of cocaine seized during 2005 and 2006 was of Colombian origin. Adulterants found included levamisole (10% of adulterated seizures), which was noted as the "most interesting" along with diltiazem and hydroxyzine, "as they had not been observed previously in border-level seizures of cocaine".[Australian Federal Police 2005/6]

CANADA # -- Zhu et al. reported in February 2009: that, "Levamisole contaminated [...] 11% of cocaine samples tested in Alberta, Canada, from April to December 2008.".[Zhu et al 2009] In January 2009, Alberta Health Services reported that the public health department had become aware of cases of agranulocytosis related to cocaine and levamisole. 67% of the cases were females, with the first confirmed case in August 2008, and the first "probable case" in April 2007. Following hospitalizations in Alberta, public health notices went out in several Canadian cities, warning about tainted cocaine and the symptoms to watch for.

COLOMBIA # -- Multiple batches of cocaine sourced from or tested in Colombia have contained levamisole. In February 2009 a Miami, Florida DEA lab tested a magazine page that was coated with a thick plastic "protective" covering that they determined contained cocaine and levamisole. The page had originated from Bogotá, Colombia.[DEA Microgram February 2009]

FRANCE (& BELGIUM) # -- Samples in which levamisole was detected in 2004 were seized in Guyana, the Antilles, and a shipment coming from Venezuela. Système National d'Identification des Toxiques et Substances (SINTES) reported seizures of levamisole-tainted cocaine in Belgium.[OFDT 2005] Their data shows that levamisole is a less common adulterant (present in only 11-12% of seized cocaine) than phenacetin, diltiazem, caffeine, and hydroxyzine, though it is slightly more common than lidocaine and procaine. All of these are showing up increasingly in adulterated samples, with the exception of lidocaine, which is waning.[OFDT 2008]

GUYANA # -- In February 2009 a New York City DEA lab received 192 churros (fried pastries) that arrived at JFK Airport from Guyana. Each churro contained a plastic-wrapped cylinder of cocaine adulterated with levamisole.[DEA Microgram Feb 2009]

ITALY # -- Italian seizures (published in 2007, without stating when analysis was conducted) showed "trace amounts of hydroxyzine and levamisole". It was not clear whether they were co-present.[Fucci 2007]

JAMAICA # -- In April 2009 the DEA reported seizing two packages shipped from Jamaica to addresses in Chesapeake and Portsmouth, Virginia, that contained a total of 323 grams of material, containing cocaine, caffeine, and levamisole.[DEA Microgram Apr 2009]

THE NETHERLANDS # -- The best data comes from a study published in 2009 that examined samples submitted for analysis to the Dutch Drugs Information and Monitoring System (DIMS) between 1999 and 2007. DIMS permits consumers to turn in material, provide information on what it was sold as and what its effects were, and receive results on the material's contents one week later. According to the Dutch research, 2004 was the year levamisole was first found as an adulterant, the same year it was detected in France and Belgium. The Dutch data shows an increase in the percentage of samples containing levamisole between 2004 and 2007 (from 0.6% to 11.6% of samples). Reported adverse effects were likelier in cocaine adulterated with diltiazem, hydroxyzine, and phenacetin. However, the diluents procaine and lidocaine, and the adulterants caffeine and levamisole, were not associated with a higher likelihood of adverse effects.[Brunt et al. 2009]

SPAIN # -- During Summer 2009, the risk reduction group Energy Control detected levamisole in two samples of cocaine that came from Granada, a province in the south of Spain.[Ventura 2009]

SWITZERLAND # -- Two cocaine samples from Zürich subject to quantitative analysis by the harm reduction group Safer Clubbing Switzerland found: 1) cocaine (51.8% ), phenacetin (44.2% ), and levamisole (3.3% ), and: 2) cocaine (21.6% ), phenacetin (41.9% ), levamisole (3.3% ), and caffeine (0.5% ).[Ventura 2009] A Swiss harm reduction group reported in private communication to Erowid that they are commonly testing for levamisole in 2009 and are seeing around 75% of the cocaine they test adulterated with levamisole, though it only constituties 3-4% of the total mass of "cocaine" powder. They report that phenacetin is even more common and often makes up 30-50% of the powder sold as cocaine. This group first found levamisole in cocaine samples in 2008.[Buecheli 2009]

UNITED KINGDOM # -- Levamisole was first detected in the United Kingdom in April 2005; it was found in cocaine-positive urine collected from deceased individuals.[Morley et al. 2006] Fourteen such cases between 2005 and 2006 were examined; 13 of the decedents were male and "known drug abusers". At the time, the researchers had personal-communication intelligence about levamisole-contaminated cocaine seizures in Australia, Europe, and North America. Over a period of one week, when the researchers were collecting urine samples among people in rehab, of those who tested positive for cocaine, no levamisole was detected in the urine samples.

UNITED STATES # -- Data regarding the first appearance of levamisole in cocaine, as reported by the DEA, is not entirely clear. In a 2008 paper, a graph shows April 2005 as the first year that levamisole is present in "Cocaine HCl Bricks".[Casale et al. 2008] However, a 2005 paper refers to material analyzed "over approximately the past two years" and "containing various amounts of levamisole", which could refer to samples analyzed as early as 2003.[Valentino et al. 2005] The September 2009 SAMHSA report suggests that the DEA had been detecting levamisole as early as 2002. In Delaware, as early as September 2005, it was mentioned that there had been fatalities "from this drug as well as from crack".[Delaware Health Alert Network 2005]


I just thought I'd share this with you. Be careful with cocaine, most of it has this stuff, and you don't want to get addicted. Also, if you make crack/freebase, or try to wash it, the levamisole doesn't come out. It will actually stick to the rock if you make crack/freebase, so it's almost impossible to get out :(
 
Last edited:
Concerning levamisole....

Is there a way to "wash " the levamisole out of cocaine using acetone or some other solvent? I used to be a cocaine injector and smoked base for a while as well altho the last time I used cocaine was in 2006. We used to get very high purity cocaine, however if it was /is present already coming from columbia then it can be 90% pure and 10% levamisole which would be dangerous so I wonder,for the people I know who still use cocaine if there is a way to clean out this contaminant...maybe convert it to freebase using the old ether and ammonia method popular in the 1970's ? and then adding hydrocloric acid drop by drop to turn the base form back into the Hcl form...we did that with cocaine in the mid-90's to get higher purity cocaine, altho this was in larger quantities like 100 gram amounts to be sold to other friends,and was not done by me personaly but i did see that process a number of times...
 
^I've read an acetone wash does NOT work to remove levamisole =(

I don't know about other ways

This is sad... and sorry about your friend OP..
 
No way to remove the levamisole that I know of. My friend is in the hospital now, with pneumonia, on a breathing machine AKA life support. I don't want it to happen, I can't stop it, but it looks like he's dying. Please share this with anyone you know who uses cocaine. It's just not worth the risk, cocaine without this garbage levamisole is so incredibly rare these days.
 
Just when you thought cocaine couldnt get any more less appealing.......
 
Any idea why this nis happening and at what level of the distribution chain? killing your customers is bad business
 
Any idea why this nis happening and at what level of the distribution chain? killing your customers is bad business

Buying cocaine is bad business.

Perhaps they don't think very highly of their customers any more, because their customers have been paying ridiculous prices for such obvious crap for so many years...
 
Buying cocaine is bad business.

Perhaps they don't think very highly of their customers any more, because their customers have been paying ridiculous prices for such obvious crap for so many years...

While I respect your opinion especially the sentiment of it I find it hard to believe. If you really wanted to kill people there are much more effective ways of doing it then levamisole.
 
--Step 2

Potassium permanganate is combined with water. This mixture is added to the

coca paste and acid solution. Potassium permanganate is used in this step to

extract other alkaloids and material that is undesired in the final product.

In particular, potassium permanganate is used to break down the alkaloid

ciscinnamoylcocaine found in large concentrations in E. novogranatense

varieties. If the coca paste has a high concentration of this alkaloid and

potassium permanganate is not used, then crystallization of cocaine HCl will

be very difficult.

maybe levisamole is added so that producers can crystalise cocaine hydrochloride without having to use potassium permanganate which has become harder to aquire?
 
Buying cocaine is bad business.

Perhaps they don't think very highly of their customers any more, because their customers have been paying ridiculous prices for such obvious crap for so many years...

maybe it's just that people love the cocaine so much that they're willing to put other crap in their body if that goes along with it
 
well my friend stopped doing cocaine a few months ago, and then this month he finally left us, after fighting it for over a year. :( Nobody can say for sure what caused his cancer, but he regularly used cocaine with levamisole in it for several years, and was showing signs of levimisole toxicity (random bruising, etc.). Because levimisole causes irregularities in the bone marrow, the production of blood cells, etc, it's pretty safe to speculate that it probably had a major role in causing the leukemia, which is bone marrow cancer. He also hardly ever slept in the time he was using cocaine all those years, which severely weakened any natural immunities his body had to resist cancer, allowing it to develop and progress quickly. It's really sad; I guess my point is be careful what you put in your body, and how much is also very crucial. If you only do a line here and there, you should be fine. But if you're a $20/day regular user, look out for bruising, change in smell, etc. The article I posted has a lot of useful info if you are a cocaine user. Look up "levamisole toxicity" if you are concerned about it

who actually knows why they are putting it in the cocaine, the article mentions possibly increased dopamine activity in the brain, but the point of this thread is to warn users about what's most likely in their cocaine, even if it's of high purity, samples have shown on ecstasydata.org containing 99 parts cocaine, only 1 (trace) part levamisole, all the way to 4:1 cocaine:levamisole, which is quite a bit more.

Don't make cocaine a habit, look out for signs of levamisole toxicity if you are a regular coke user, or have friends that do a lot of blow... You don't want their bone marrow to get mutated into cancer, like my friend :(
 
although im not a coke fan and its times like this im glad im not i hope every one who uses this drug stays safe due to this levamisole
 
A VERY large percentage of cocaine worldwide at the moment contains levamisole, even if it's not very much. Levamisole severely weakens your immune system and makes you susceptable to illness and disease. It is an antibiotic/animal dewormer, and has many negative side effects. The worst part is that many medical professionals are not trained to know levamisole is in the cocaine, and do not realize that may be causing the symptoms when people go to the ER.

One of my friends who has been doing coke daily for years got leukemia, and the drug affects bone marrow and key white blood cells. The worst part is I'm watching him kill himself, he has bruising from toxicity and he still wont quit. The shit is bad, and absolutely unbelievably horrible for anyone who is addicted or a regular user.

Why can't the US just END THE WAR ON DRUGS? IT'S SO SIMPLE !!!! :!

No more cocaine cut with this toxic bullshit.

You can read more here:
http://www.erowid.org/chemicals/cocaine/cocaine_article2.shtml

NSFW:
Cocaine Adulterated with Levamisole on the RiseStatus as of September 2009
by the Erowid Crew
Oct 1, 2009
Citation: Erowid Crew. "Cocaine Adulterated with Levamisole on the Rise: Status as of September 2009" Erowid.org. Oct 1, 2009. http://www.erowid.org/cocaine/cocaine_article2.shtml
It has long been a practice, particularly among street-level dealers, to "cut" cocaine with diluents in order to increase profits. In the past, cuts have commonly been fairly innocuous materials, such as lactose, mannitol, or niacinamide, chosen because they match the appearance of cocaine, or chemicals such as benzocaine, lidocaine, or procaine, chosen because they cause a localized numbing effect similar to that produced by cocaine. However, in recent years there has been an upsurge in the use of more pharmacologically active chemicals as cocaine adulterants, including compounds such as acetaminophen, atropine, caffeine, hydroxyzine, methylephedrine, diltiazem, methylphenidate (Ritalin), and phenacetin.[DEA microgram 2004] [Vroegop 2009] [Elias 2007] One of the more concerning adulterants that has become increasingly prevalent over the last few years is levamisole, a pharmaceutical veterinary dewormer and a research immunomodulator.

Levamisole is Not New
Although levamisole has been a known adulterant in cocaine since at least 2002,[SAMHSA 2009] on September 21, 2009, the U.S. Substance Abuse and Mental Health Services Administration (SAMHSA) made the surprising announcement that levamisole had been found in "over 70 percent of the illicit cocaine analyzed [by the DEA] in July. In addition, a recent analysis in Seattle, Washington found that almost 80 percent of the individuals who test positive for cocaine also test positive for levamisole."[SAMHSA 2009]


Following the SAMHSA alert, the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) also sent out an email alert, which claimed that levamisole was found in over 50% of cocaine samples tested in the United Kingdom and the Netherlands during a period in 2009.[Ventura 2009] Previous reports by the DEA and testing conducted by a number of other organizations had shown levamisole present in cocaine, but in a much smaller percentage of tested samples than reported by the DEA in August/September 2009. For example, in October 2008, the DEA reported detecting levamisole in 30% of the bricks of cocaine that they analyzed,[DEA Microgram Oct 2008] and Health Canada reported 11% of cocaine samples from April to December 2008 were contaminated with levamisole.[Zhu 2009]


Levamisole Media Blitz
Beginning in late August 2009, a surge of media stories warned about negative health effects and deaths associated with levamisole as a cocaine adulterant, with Google News showing 606 stories in September alone. The death of a popular DJ and Los Angeles club owner, Adam Goldstein "DJ AM", in late August kept the issue in the news because autopsy-related forensic toxicology results included levamisole among a long list of other drugs detected.


Levamisole Health Risks
As a cocaine adulterant, levamisole is dangerous primarily because it suppresses the immune system of those who are exposed to it. It is also possible that levamisole interacts with cocaine's stimulant effects and increases acute cardiovascular toxicity
, though this is still speculation based on levamisole metabolites (such as aminorex) that have been found to occur in horses. Such metabolites have not been confirmed in humans.

Though it has been used therapeutically in humans for decades, levamisole can cause agranulocytosis (acute neutropenia), a blood disorder characterized by the disappearance of certain types of white blood cells necessary for the proper functioning of the immune system. Agranulocytosis/neutropenia can result in a wide range of problems associated with a weakened immune system including infections throughout the body, high fever, chills, swollen glands, painful sores, and wounds that don't heal. Left untreated, the condition can result in death. Agranulocytosis can be treated if detected and diagnosed properly.

Because the symptoms of agranulocytosis can be so wide-ranging, because it is an unusual condition, and because levamisole contamination of cocaine is a relatively new problem, it is essential that those seeking medical care for a condition like high fever be honest with their health care providers about the illicit substances they have taken, in order to improve their chances of being diagnosed properly and recovering quickly.

It is likely that people whose immune systems are already compromised by disease or genetic background are more susceptible to the risk of agranulocytosis from levamisole exposure.


Diagnosis and Detection Difficulties
Levamisole's half-life in blood plasma is short, less than six hours, but its immune suppression can last much longer. This makes it difficult to positively diagnose that a patient's agranulocytosis is a result of levamisole exposure, as blood or urine tests may come back negative for levamisole even when immune suppression has resulted from levamisole ingestion. Medical centers are currently forced to rule out other causes of immune problems such as HIV (AIDS), leukemias, and parvovirus. If the patient admits to cocaine use or has used cocaine recently enough that levamisole is still present in their blood or urine, some tests for unlikely conditions may be avoided.[Babu 2009]

As of Oct 1, 2009, there is no nationwide data on the number of cases of levamisole poisoning. Many health care providers are unaware of the problem, though poison control centers and the U.S. Centers for Disease Control are currently on the lookout for new cases.


General Contaminant Problems
For most pharmacologically active adulterants, the potential risks related to interactions with cocaine (and/or with each other) are unknown. Additionally, none of those compounds--when used medicinally in humans--are insufflated or smoked, and there may be increased risks based on such routes of consumption. A paper by Brunt et al. in 2009 analyzed data about street cocaine use in the Netherlands and found that "Adulterated cocaine was associated more frequently with reported adverse effects than unadulterated cocaine."[Brunt et al. 2009]

Unfortunately, the nature of black market substances makes it difficult or impossible to be sure that any sample of street cocaine is free from adulterants.

The DEA's message is simply "Don't use cocaine; it's a dangerous drug",[Knierim, 2009] a position criticized by those who see drug prohibition as the cause of the difficulties, similar to the problems associated with contaminated and low-quality alcohol during the U.S. alcohol Prohibition of the 1920s.[Sullum 2009]


Levamisole Background Information
Levamisole is an antihelminthic (dewormer, anti-parasitic) used in large livestock and aquarium fish. Levamisole is also an antineoplastic (a drug that inhibits abnormal cell growth that can produce potentially malignant tumors) used in the treatment of colo-rectal cancer in humans. However, this use has been discontinued in the United States and many other countries. It acts on the central and peripheral nervous systems, and has cholinesterase inhibitory properties. Side effects from therapeutic doses of levamisole include nausea, diarrhea, dermatitis, taste perversion, fatigue, vomiting, arthralgia, infection, leucopenia,[PDR 1998] and much more rarely agranulocytosis.


Why Adulterate with Levamisole?
According to the DEA, levamisole--as well as other adulterants--is apparently present in some shipments of cocaine intercepted before they are broken up for further distribution to consumers. Considering that, in one batch, only 6% by weight of the total product sold as cocaine was levamisole, it seems possible it is more than simply a bulking agent. One theory is that levamisole or other adulterants boost the effects of cocaine, permitting material to pass for higher-quality product despite additional cuts made down the line. Another theory is that levamisole or other adulterants are added as chemical signatures used to track distribution of material.[Fucci 2007] It may be that levamisole has been used because it has similar solubility properties to cocaine and therefore is difficult to remove and has not previously been considered a serious health hazard. As of October 1, 2009, there is no definitive answer as to why it is used as a cocaine adulterant.


Can You Tell if Cocaine is Contaminated with Levamisole?
Unfortunately, there is no currently available easy, on-site test to determine if street cocaine is adulterated with levamisole. DanceSafe.org has indicated that they are working on a field test that can be used, but it is not yet available. Thin Layer Chromatography (TLC) could be used by trained individuals to check for contaminants, but requires the use of lab standards and is therefore impractical for the general public.

As of September 2009, EcstasyData.org is accepting submissions of cocaine samples in capsules, which will be analyzed by a lab that can identify levamisole. Testing costs $120 per submitted sample, which must be paid by the submitter. Unfortunately, the DEA currently restricts testing and does not allow the lab to quantify the amount of contaminants in street drugs. So far, EcstasyData has received one cocaine sample, sent from Butte, Montana, which was found to contain levamisole.


Where has Levamisole Been Found?
Data from the following countries is not inclusive of all levamisole findings, but represents a brief survey of information available showing how widespread levamisole-tainted cocaine is.

AUSTRALIA # -- From 70 seizures, 59% of cocaine seized during 2005 and 2006 was of Colombian origin. Adulterants found included levamisole (10% of adulterated seizures), which was noted as the "most interesting" along with diltiazem and hydroxyzine, "as they had not been observed previously in border-level seizures of cocaine".[Australian Federal Police 2005/6]

CANADA # -- Zhu et al. reported in February 2009: that, "Levamisole contaminated [...] 11% of cocaine samples tested in Alberta, Canada, from April to December 2008.".[Zhu et al 2009] In January 2009, Alberta Health Services reported that the public health department had become aware of cases of agranulocytosis related to cocaine and levamisole. 67% of the cases were females, with the first confirmed case in August 2008, and the first "probable case" in April 2007. Following hospitalizations in Alberta, public health notices went out in several Canadian cities, warning about tainted cocaine and the symptoms to watch for.

COLOMBIA # -- Multiple batches of cocaine sourced from or tested in Colombia have contained levamisole. In February 2009 a Miami, Florida DEA lab tested a magazine page that was coated with a thick plastic "protective" covering that they determined contained cocaine and levamisole. The page had originated from Bogotá, Colombia.[DEA Microgram February 2009]

FRANCE (& BELGIUM) # -- Samples in which levamisole was detected in 2004 were seized in Guyana, the Antilles, and a shipment coming from Venezuela. Système National d'Identification des Toxiques et Substances (SINTES) reported seizures of levamisole-tainted cocaine in Belgium.[OFDT 2005] Their data shows that levamisole is a less common adulterant (present in only 11-12% of seized cocaine) than phenacetin, diltiazem, caffeine, and hydroxyzine, though it is slightly more common than lidocaine and procaine. All of these are showing up increasingly in adulterated samples, with the exception of lidocaine, which is waning.[OFDT 2008]

GUYANA # -- In February 2009 a New York City DEA lab received 192 churros (fried pastries) that arrived at JFK Airport from Guyana. Each churro contained a plastic-wrapped cylinder of cocaine adulterated with levamisole.[DEA Microgram Feb 2009]

ITALY # -- Italian seizures (published in 2007, without stating when analysis was conducted) showed "trace amounts of hydroxyzine and levamisole". It was not clear whether they were co-present.[Fucci 2007]

JAMAICA # -- In April 2009 the DEA reported seizing two packages shipped from Jamaica to addresses in Chesapeake and Portsmouth, Virginia, that contained a total of 323 grams of material, containing cocaine, caffeine, and levamisole.[DEA Microgram Apr 2009]

THE NETHERLANDS # -- The best data comes from a study published in 2009 that examined samples submitted for analysis to the Dutch Drugs Information and Monitoring System (DIMS) between 1999 and 2007. DIMS permits consumers to turn in material, provide information on what it was sold as and what its effects were, and receive results on the material's contents one week later. According to the Dutch research, 2004 was the year levamisole was first found as an adulterant, the same year it was detected in France and Belgium. The Dutch data shows an increase in the percentage of samples containing levamisole between 2004 and 2007 (from 0.6% to 11.6% of samples). Reported adverse effects were likelier in cocaine adulterated with diltiazem, hydroxyzine, and phenacetin. However, the diluents procaine and lidocaine, and the adulterants caffeine and levamisole, were not associated with a higher likelihood of adverse effects.[Brunt et al. 2009]

SPAIN # -- During Summer 2009, the risk reduction group Energy Control detected levamisole in two samples of cocaine that came from Granada, a province in the south of Spain.[Ventura 2009]

SWITZERLAND # -- Two cocaine samples from Zürich subject to quantitative analysis by the harm reduction group Safer Clubbing Switzerland found: 1) cocaine (51.8% ), phenacetin (44.2% ), and levamisole (3.3% ), and: 2) cocaine (21.6% ), phenacetin (41.9% ), levamisole (3.3% ), and caffeine (0.5% ).[Ventura 2009] A Swiss harm reduction group reported in private communication to Erowid that they are commonly testing for levamisole in 2009 and are seeing around 75% of the cocaine they test adulterated with levamisole, though it only constituties 3-4% of the total mass of "cocaine" powder. They report that phenacetin is even more common and often makes up 30-50% of the powder sold as cocaine. This group first found levamisole in cocaine samples in 2008.[Buecheli 2009]

UNITED KINGDOM # -- Levamisole was first detected in the United Kingdom in April 2005; it was found in cocaine-positive urine collected from deceased individuals.[Morley et al. 2006] Fourteen such cases between 2005 and 2006 were examined; 13 of the decedents were male and "known drug abusers". At the time, the researchers had personal-communication intelligence about levamisole-contaminated cocaine seizures in Australia, Europe, and North America. Over a period of one week, when the researchers were collecting urine samples among people in rehab, of those who tested positive for cocaine, no levamisole was detected in the urine samples.

UNITED STATES # -- Data regarding the first appearance of levamisole in cocaine, as reported by the DEA, is not entirely clear. In a 2008 paper, a graph shows April 2005 as the first year that levamisole is present in "Cocaine HCl Bricks".[Casale et al. 2008] However, a 2005 paper refers to material analyzed "over approximately the past two years" and "containing various amounts of levamisole", which could refer to samples analyzed as early as 2003.[Valentino et al. 2005] The September 2009 SAMHSA report suggests that the DEA had been detecting levamisole as early as 2002. In Delaware, as early as September 2005, it was mentioned that there had been fatalities "from this drug as well as from crack".[Delaware Health Alert Network 2005]


I just thought I'd share this with you. Be careful with cocaine, most of it has this stuff, and you don't want to get addicted. Also, if you make crack/freebase, or try to wash it, the levamisole doesn't come out. It will actually stick to the rock if you make crack/freebase, so it's almost impossible to get out :(
I been smoking coke from New York city Washington Heights 168th - 175th street since 1986 . There was never any scare about what you were smoking because then you just got a few grams and put 1/2 baking soda to whatever you were cooking. And I cooked mine in a microwave for 7 seconds and got the same results every time. Pure cocaine. Then in 1988 , New York Washington Heights they started selling it already cooked, and if you got there when they were making a fresh batch they did it in front of you on a gas stove in a 10" Cast Iron Skillet. They put 2 or 3 Eight Balls of Coke onto about 1/4" of water and kept sprinkling Baking Soda over it and stirring it. Definitely a technique they had. After it was done they let it cool down completely, pickup the skillet and Whack it on the table. Now there was a 10" round 1/4" thick disc we called a pancake and Jose would let you sample his product free since you waited patiently for it on very much of a edge because your New Jersey plated truck was downstairs double parked illegally and the cops could just be down the street watching for you to start driving away.
But anyway the cocaine supply in New York city was like that until the late 90's. Once ALL those places were shut down by Mayor Giuliani, chemicals started taking the place of real cocaine. Even today I am smoking some already prepared Hard Coke and after I take a hit, my mouth gets numb. That's not real. That's some kinda additive because only when you snort it and lick the mirror will you get numb. Never did I or know anyone else who got numb taste from smoking it
 
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