Researchers from Texas A&M University and the University of Florida, Gainesville evaluated drug use patterns from a nationally representative sample of 2,835 12th graders.
Authors found that youth use of alcohol most often preceded the use of tobacco or marijuana. They also reported subjects’ age of alcohol initiation is the strongest predictor of later polydrug use.
“Alcohol is the most commonly used substance, and the majority of polysubstance using respondents consumed alcohol prior to tobacco or marijuana initiation,” they reported. “Respondents initiating alcohol use in sixth grade reported significantly greater lifetime illicit substance use and more frequent illicit substance use than those initiating alcohol use in ninth grade or later.”
They concluded, “Our results … assert that the earlier one initiates alcohol use, the more likely that they will engage in future illicit substance use.”
The findings are inconsistent with recent claims made by several prominent lawmakers that cannabis is a ‘gateway’ to later substance abuse.
Studies conducted by the RAND Corporation and others have previously dismissed any alleged causal role of marijuana as a gateway to subsequent illicit drug abuse, finding, “There is no conclusive evidence that the drug effects of marijuana are causally linked to the subsequent abuse of other drugs.”
An abstract of the study, “Prioritizing Alcohol Prevention: Establishing Alcohol as the Gateway Drug and Linking Age of First Drink With Illicit Drug Use,” appears online here.
A rise in the self-reported consumption of cannabis during the years 2006 to 2010 corresponds with a significant decline in Americans’ use of cocaine and methamphetamine during this same time period, according to a new RAND study commissioned by the White House Office of National Drug Control Policy (ONDCP).
Researchers estimate that Americans increased their consumption of cannabis by approximately 30 percent during the years 2006 to 2010. During this same time, authors estimated that the public’s use of cocaine and methamphetamine declined, with Americans’ use of cocaine falling by half.
Americans’ consumption of heroin remained largely stable throughout the decade, the study reported. According to statistics compiled by the US Substance Abuse And Mental Health Services Administration, an estimated 4.5 million Americans have tried heroin in their lifetimes. By comparison, an estimated 12 million Americans have tried methamphetamine, 37.5 million have tried cocaine, and 111 million have consumed cannabis.
Authors estimated that Americans spent approximately one trillion dollars on the purchase of cocaine, heroin, marijuana and methamphetamine between 2000 and 2010.
Commenting on the report, NORML Deputy Director Paul Armentano said, “These figures belie that notion that marijuana exposure is an alleged ‘gateway’ to the use of other illicit substances and instead suggest that for some people, cannabis may be a substitute for other so-called ‘hard drugs’ or even an exit drug.”
Survey data published in 2013 in the journal Addiction Research & Theory reported that among a cohort of medical marijuana consumers, 75 percent of subjects acknowledged that they used cannabis it as a substitute for prescription drugs, alcohol, or some other illicit substance.
A 2010 study published in the Harm Reduction Journal reported that cannabis-using adults enrolled in substance abuse treatment programs fared equally or better than nonusers in various outcome categories, including treatment completion.
Full text of the study, “”What America’s Users Spend on Illegal Drugs, 2000-2010,” is available online from the Office of National Drug Control Policy here.
Study: Marijuana Use Associated With Decreased Symptoms Of Opiate Withdrawal In Methadone Maintenance Treatment SubjectsJuly 16, 2013
Cannabis consumption is associated with mitigated symptoms of opiate withdrawal in subjects undergoing methadone maintenance treatment, according to the findings of a new study published online in The American Journal on Addictions.
Investigators at the Farber Institute for Neurosciences at Thomas Jefferson University in Philadelphia assessed the use of cannabis in 91 opiate-dependent subjects undergoing methadone maintenance treatment. Researchers found that subjects seeking methadone treatment who acknowledged a history of cannabis use reported “significantly less daily expenditure on acquisition of opiates.”
Authors additionally reported that subjects’ use of cannabis during treatment was associated with less severe symptoms of withdrawal on the clinical opiate withdrawal scale (COWS), an index designed to serve as an objective measure of opiate withdrawal. “[I]ncreased cannabis use was found to be associated with lower severity of [opiate] withdrawal in a subset of the sample with available chart data,” authors wrote. “These results suggested a potential role for cannabis in the reduction of withdrawal severity during methadone induction.”
They concluded, “The present findings may point to novel interventions to be employed during treatment for opiate dependence that specifically target cannabinoid–opioid system interactions.”
A 2009 study published in the same journal previously reported that moderate cannabis use and improved retention in naltrexone treatment among opiate-dependent subjects.
Full text of the study, “Impact of cannabis use during stabilization on methadone maintenance treatment,” appears online in The American Journal on Addictions.
Three quarters of medical cannabis consumers report using it as a substitute for prescription drugs, alcohol, or some other illicit substance, according to survey data published in the journal Addiction Research and Theory.
An international team of investigators from Canada and the United States assessed the subjective impact of marijuana on the use of licit and illicit substances via self-report in a cohort of 404 medical cannabis patients recruited from four dispensaries in British Columbia, Canada.
Researchers reported that subjects frequently substituted cannabis for other substances, including conventional pharmaceuticals. Authors reported:
“Over 41 percent state that they use cannabis as a substitute for alcohol (n=158), 36.1 percent use cannabis as a substitute for illicit substances (n=137), and 67.8 percent use cannabis as a substitute for prescription drugs (n=259). The three main reasons cited for cannabis-related substitution are ‘less withdrawal’ (67.7 percent), ‘fewer side-effects’ (60.4 percent), and ‘better symptom management’ suggesting that many patients may have already identified cannabis as an effective and potentially safer adjunct or alternative to their prescription drug regimen.”
Overall, 75.5 percent (n=305) of respondents said that they substitute cannabis for at least one other substance. Men were more likely than women to report substituting cannabis for alcohol or illicit drugs.
Authors concluded: “While some studies have found that a small percentage of the general population that uses cannabis may develop a dependence on this substance, a growing body of research on cannabis-related substitution suggests that for many patients cannabis is not only an effective medicine, but also a potential exit drug to problematic substance use. Given the credible biological, social and psychological mechanisms behind these results, and the associated potential to decrease personal suffering and the personal and social costs associated with addiction, further research appears to be justified on both economic and ethical grounds. Clinical trials with those who have had poor outcomes with conventional psychological or pharmacological addiction therapies could be a good starting point to further our under- standing of cannabis-based substitution effect.”
Previous studies have similarly demonstrated cannabis’ potential efficacy as an exit drug. A 2010 study published in the Harm Reduction Journal reported that cannabis-using adults enrolled in substance abuse treatment programs fared equally or better than nonusers in various outcome categories, including treatment completion. A 2009 study reported that 40 percent of subjects attending a California medical cannabis dispensary reported using marijuana as a substitute for alcohol, and 26 percent used it to replace their former use of more potent illegal drugs. A separate 2009 study published in the American Journal on Addictions reported that moderate cannabis use and improved retention in naltrexone treatment among opiate-dependent subjects in a New York state inpatient detoxification program.
Full text of the study, “Cannabis as a substitute for alcohol and other drugs: A dispensary-based survey of substitution effect in Canadian medical cannabis patients,” appears online in Addiction Research and Theory. NORML Advisory Board Member Mitch Earleywine is a co-author of this study.
As 50% of Americans now support marijuana legalization, the prohibitionists are coming out in full force with hysterical propaganda to once again terrorize voters about cannabis. We intended to scour multiple sources to compile the five most common scare tactics they use, but Joseph Summerill, director of the Summerill Group LLC, a Washington, D.C.- based law enforcement think tank and general counsel for the Major County Sheriffs’ Association, made our job easy by using all five in one op-ed piece published today in the Washington Examiner entitled, “Facts on medical marijuana are stubborn things, too“.
Lie #1) Marijuana’s not really medical. The government says so!
[M]arijuana is a Schedule I drug… a high potential for abuse or dependency… no accepted medical value… unsafe to use, even under medical supervision. [M]arijuana has not passed the rigid scrutiny of medicine proposed by the FDA.
- National Institutes of Drug Abuse (NIDA) puts the lifetime dependence rate on cannabis at 9%, same as caffeine. Alcohol has a 15% rate of abuse and Tobacco’s is 32%.
- One third of federal jurisdictions (16 states and DC) accept the medical value of cannabis.
- The federal government is supplying four Americans with this “unsafe” medicine with no medical supervision.
- Cannabis has been used medically for 5,000 years without a single human death – a far greater safety standard than an FDA that approved phen-fen and Vioxx.